Here are all the First Champions for every championships I could find

[BallroomDancer]

The First Champions of the Championships:

• NWA WORLD HEAVYWEIGHT: Orville Brown
• NWA United National Heavyweight: Dale Lewis
• NWA WORLD TELEVISION: Hans Schmidt
• NWA WORLD BRASS KNUCKLES: Gypsy Joe
• NWA WORLD MIDGET'S TITLE: Sky Low Low
• NWA WORLD WOMEN'S TITLE: Mildred Burke
• NWA UNITED STATES HEAVYWEIGHT: Buddy Rogers
• NWA UNITED STATES WOMENS TITLE: Tony Rose
• AWA WORLD HEAVYWEIGHT: Pat O’Connor
• AWA UNITED STATES: Verne Gagne
• AWA LIGHT HEAVYWEIGHT: Mike Graham
• AWA BRITISH EMPIRE HEAVYWEIGHT: Billy Lyons
• AWA WORLD WOMEN'S TITLE: Penny Banner
• 3PW HEAVYWEIGHT TITLE: Gary Wolfe
• WWE UNIVERSAL: Finn Balor
• APW UNIVERSAL HEAVYWEIGHT: Robert Thompson
• APW WORLDWIDE INTERNET TITLE: Micheal Modest
• APW JUNIOR HEAVYWEIGHT: Super Diablo
• APW ABOVE THE LAW/FUTURE LEGENDS: Robert Thompson
• CZW HEAVYWEIGHT TITLE: Nick Cage
• CZW JUNIOR HEAVYWEIGHT: The Sensational One
• CZW IRON MAN TITLE: Derek Domino
• CZW/NWA INTERPROMOTIONAL HARDCORE: Nick Cage
• DSW HEAVYWEIGHT: Mike Mizanin
• FULL IMPACT PRO : Homicide
• FIP FLORIDA HERITAGE TITLE: Erick Stevens
• Jersey All Pro Wrestling Heavyweight: Joe Rules
• Jersey All Pro Wrestling Light Heavyweight: Rik Ratchet
• Jersey All Pro Wrestling New Jersey State Heavyweight: Flash Wheeler
• Jersey All Pro Wrestling Suicidal: Jay Lover
• Jersey All Pro Wrestling Television Title: Dixie
• OVW HEAVYWEIGHT: Trailer Park Trash
• OVW TELEVISION: Brent Albright
• OVW Hardcore: Trailer Park Trash
• OVW WOMEN'S TITLE: ODB
• OVW LIGHT-HEAVYWEIGHT: Jason Lee
• PWG HEAVYWEIGHT: Frankie Kazarian
• ROH World Heavyweight: Low Ki
• ROH Pure Title: AJ Styles
• ROH Television: Eddie Edwards
• XPW HEAVYWEIGHT: Damien Steele
• XPW TELEVISION: Kaos
• XPW DEATH MATCH TITLE: Supreme
• World Heavyweight Title: Killer Kowalski
• Stampede Wrestling World Mid-Heavyweight: Johnny Demchuk
  Stampede Wrestling North American Heavyweight: Archi Gouldie
• Stampede Wrestling British Commonwealth Mid-Heavyweight Title: Dynamite Kid
• British Empire Heavyweight: Pat Connolly
• Stampede Wrestling Pacific Heavyweight: Greg Pawluk
• Stampede Wrestling Women's Pacific Title: Nattie Neidhard
• Canadian Heavyweight Title: Jack Taylor
• UNIFIED TRIPLE CROWN HEAVYWEIGHT: Jumbo Tsuruta
• World Junior Heavyweight Title: Hiro Saitō
• NWA International Heavyweight Title: Lou Thesz
• National Wrestling Alliance World Junior Heavyweight Title: Steve Keirn
• Pacific Wrestling Federation Heavyweight: Giant Baba
• Pacific Wrestling Federation United States Heavyweight: The Destroyer
• All Asia Heavyweight: Rikidōzan
• AMERICAN WRESTLING ASSOCIATION WORLD HEAVYWEIGHT: Verne Gagne
• (Who was the first champion for this Championship FMW Heavyweight?)
• FMW Junior Heavyweight Title: Tanaka Minoru
• Japanese Heavyweight Title: Rikidōzan
• Japanese Junior Heavyweight Title: Surugaumi
• Japanese Light Heavyweight Title: Yoshinosato
• INTERNATIONAL WRESTLING GRAND PRIX HEAVYWEIGHT TITLE: Antonio Inoki
• INTERNATIONAL WRESTLING GRAND PRIX JUNIOR HEAVYWEIGHT TITLE: Koshinaka Shiro
• NATIONAL WRESTLING FEDERATION WORLD HEAVYWEIGHT TITLE: Johnny Powers
• National Wrestling Federation North American Heavyweight Title: Johnny Powers
• J-CROWN Octuple Title Unification: The Great Sasuke
• Asistencia Asesoria y Administracion World Heavyweight Title "Mega Title”: El Mesas
• Asistencia Asesoria y Administracion Reina de Reinas Title: Xohcitl Hamada
• Consejo Mundial de Lucha Libre World Heavyweight Title: Kennan el Barbaro
• Consejo Mundial de Lucha Libre World Light Heavyweight Title: Jerry Estada
• Consejo Mundial de Lucha Libre World Middleweight Title: Blue Panter
• Consejo Mundial de Lucha Libre World Welterweight Title: Fuerza Guerrera
• Consejo Mundial de Lucha Libre Women's World Title: Bull Nakano
• Consejo Mundial de Lucha Libre World Mini-Estrella Title: Mascarita Sagrada
• CMLL Japan Super Lightweight Title: Yakushiji Masato
• CMLL Japan Women's Title: Shiratori Chikako
• International Wrestling Revolution Group Intercontinental Heavyweight Title: Pierrot Jr.
• International Wrestling Revolution Group Intercontinental Middleweight Title: Pantera
• International Wrestling Revolution Group Intercontinental Welterweight Title: Dr. Cerebro
• World Wrestling Council World Heavyweight Title: Abdullah The Butcher
• World Wrestling Council World Junior Heavyweight Title: Dick Seinborn
• World Wrestling Council Television: Ron Starr
• World Wrestling Council Hardcore: Carlo Colón
• World Wrestling Council World Women's Title: Wendi Richter
• Caribbean Heavyweight Title: Jose Lothario
• Puerto Rico Heavyweight Title: Jose Miguel Pérez
• World Wrestling Council North American Heavyweight: Gil Hayes
• Global Wrestling Federation North American Heavyweight Title: The Patriot #
• Global Wrestling Federation Television Title: The Patriot (Del Wilkes)
• Global Wrestling Federation Light Heavyweight Title: Lightning Kid (Sean Waltman)
• Smoky Mountain Wrestling Heavyweight Title: Brian Lee
• Smoky Mountain Wrestling "Beat the Champ" Television Title: Tracy Smothers
• Unified World Heavyweight Title: Jerry Lawler
• United States Wrestling Association Southern Heavyweight Title: Dirty White Boy
• United States Wrestling Association Television Title: Jesse James Armstrong
• United States Wrestling Association Junior Heavyweight Title: Ken Wayne
• Texas Heavyweight Title: Paul Jones
• United States Wrestling Association Women's Title: Miss Texas (Jacqueline Moore)
• Universal Wrestling Federation World Heavyweight Title: Terry Gordy
• Universal Wrestling Federation World Television Title: Buzz Sawyer
• WCW WORLD TITLE: Ric Flair
• WCW UNITED STATES TITLE: Lex Luger
• WCW TELEVISION TITLE: Arn Anderson
• WCW CRUISERWEIGHT TITLE: Shinjiro Ohtani
• WCW HARDCORE TITLE: Norman Smiley
• NWATNA World Heavyweight: AJ Styles
• TNA Heavyweight: Kurt Angle
• FTW Taz/Tazz
• NWATNA X-Division: AJ Styles
• TNA Knockouts: Gail Kim
• TNA Legend’s Title: Booker T
• TNA Global Title: AJ Styles
• TNA Television: AJ Styles
• TNA King of the Mountain: Jeff Jarett
• Impact Grand Title: Aron Rex
• ECW WORLD HEAVYWEIGHT TITLE: Jimmy Snuka
• ECW TELEVISION TITLE: Johnny Hot Body
• FCW SOUTHERN HEAVYWEIGHT: Harry Smith
• FCW FLORIDA HEAVYWEIGHT TITLE: Jake Hager
• WWF/NJPW MARTIAL ARTS TITLE: Antonio Enoki
• WWF/UWA WORLD LIGHT HEAVYWEIGHT TITLE: Perro Aguayo
• WWF/UWA INTERNATIONAL HEAVYWEIGHT TITLE: Akira Maeda
• WWF JUNIOR HEAVYWEIGHT TITLE: Johnny Defazzio
• WWF NORTH AMERICAN HEAVYWEIGHT TITLE: Ted DiBiase
• WWF INTERNATIONAL HEAVYWEIGHT TITLE: Toni Parisi
• WWE Hardcore: Mankind
• WWE European: British Bulldog
• WWE Light Heavyweight: Taka Michinoku
• WWE Cruiserweight: Tajiri
• WWE ECW World: RVD
• WWE DIVAS TITLE: Michelle McCool
• WWF Women’s Title: Fabulous Moolah
• WORLD HEAVYWEIGHT: HHH
• WWE NXT NORTH AMERICAN: Seth Rollins
• WWE UNITED KINGDOM: Tyler Bate
• WWE Cruiserweight: TJ Perkins
• WWE NXT WOMEN’S TITLE: Paige
• WWE NXT: Seth Rollins
• WWE SD Women’s: Becky Lynch
• WWE RAW Women’s: Charlotte Flair
• WWE Intercontinental: Pat Patterson
• WWE United States: Eddie Guerrero
• WWE Title: Buddy Rogers
• AEW World: Chris Jericho
• TNT Title: Cody Rhodes
• AEW Women’s title: Riho

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Tag Teams/Trio Championship Champions:

• NWA WORLD TAG TEAM: Gene Anderson & Ole Anderson
• NWA WORLD 6-MAN TAG TEAM: Jackie Fargo, George Gulas, & Dennis Hall
• NWA WORLD WOMENS TAG TEAM: June Byers & Millie Stafford
• NWA UNITED STATES TAG TEAM: Ivan Koloff & Krusher Khrushchev
• AWA WORLD TAG TEAM: Tiny Mills & Stan Kowalski
• APW TAG TEAM: Michael Modest & Steve Rizzono
• CZW TAG TEAM: Jon Dahmer & Jose Rivera, Jr.
• DSW TAG TEAM: High Impact
• FIP TAG TEAM: Fast Eddie Vegas & Jimmy Rave
• Jersey All Pro Wrestling Tag Team: Blood Angels: Diablos Macabre & Lucifer Grimm
• OVW SOUTHERN TAG TEAM: Flash Flanagan & Nick Dinsmore
• PWG TAG TEAM: B-Boy & Homicide
• ROH Tag Team: Christopher Daniels & Donovan Morgan
• ROH 6-Man Tag Team: The Kingdom: Matt Taven, TK O’Ryan, and Vinny Marseglia.
• XPW TAG TEAM: Mexico's Most Wanted (Halloween & Damian 666)
• Stampede Wrestling International Tag Team Title: Joe & Guy Brunetti
• NWA Canadian Tag Team Title: Tiny & Al Mills
• World Tag Team Title: Jumbo Tsuruta & Yatsu Yoshiaki
• NWA International Tag Team Title: Fabulous Kangaroos: Al Costello & Roy Heffernan
• Pacific Wrestling Federation Tag Team: Stan Hansen & Bruiser Brody
• All Asia Tag Team: Tiger Joinder & King Kong Czaya
• FMW World Brass Knuckles Tag Team Title: The Gladiator & Big Titan
• World Street-Fight 6-Man Tag Team Title: Super Leather & Head Hunters
• All Japan Tag Team Title: Yoshinosato & Endō Kōkichi
• INTERNATIONAL WRESTLING GRAND PRIX TAG TEAM TITLE:Fujinami Tatsumi & Kimura Kengo
• INTERNATIONAL WRESTLING GRAND PRIX JUNIOR HEAVYWEIGHT TAG TEAM TITLE: Ōtani Shinjirō & Takaiwa Tatsuhito
• INTERNATIONAL WRESTLING GRAND PRIX TAG TEAM TITLE: Fujinami Tatsumi & Kimura Kengo
• Asistencia Asesoria y Administracion World Tag Team Title: Cuervo & Ozz
• Asistencia Asesoria y Administracion World Trios Title: Damian 666 & Halloween & X-Fly
• Consejo Mundial de Lucha Libre World Tag Team Title: Canek & Dr. Wagner Jr.
• Consejo Mundial de Lucha Libre World Trios Title: New Infernales: Pirata Morgan & Satanico & MS 1
• CMLL Japan Tag Team Title: Tubas & Oriental
• International Wrestling Revolution Group Intercontinental Tag Team Title: Kanda Yasushi & Mochizuki Susumu
• International Wrestling Revolution Group Intercontinental Trios Title: Escuadron de la Muerte: Maniac Cop & Vader Cop & Cyborg Cop
• World Wrestling Council World Tag Team Title: Kangaroos: Don Kent & Al Costello
• Caribbean Tag Team Title: Huracan Castillo & Maravilla
  World Wrestling Council North American Tag Team: Huracan Castillo & Don Serrano
• Global Wrestling Federation Tag Team Title: English Lords #
• Smoky Mountain Wrestling Tag Team Title: Heavenly Bodies: Stan Lane & Tom Prichard
• United States Wrestling Association World Tag Team Title: Scott Braddock & Cactus Jack
• Universal Wrestling Federation World Tag Team Title: Ted DiBiase & Steve Williams
• WCW TAG TEAM: Ron Simmons & Butch Reed
• WCW CRUISERWEIGHT TAG TEAM: Kid Romeo & Elix Skipper
• NWA/TNA Tag Team: AJ Styles and Jerry Lynn
• TNA Tag Team: America’s Most Wanted: James Storm & Chris Harris
• TNA Knockouts Tag Team: Sarita & Taylor Wilde
• ECW WORLD TAG TEAM: Super Destoyers (Doug Stahl & AJ Petrucci)
• FCW TAG TEAM TITLE: Eric Perez & Eddie Colon
• WWF/UWA INTERCONTINENTAL TAG TEAM: Gran Hamada & Perro Aguayo
• WWF UNITED STATES TAG TEAM TITLES: Mark Lewin & Don Curtis
• WWF INTERNATIONAL TAG TEAM TITLES: Rising Suns (Toru Tanaka & Mitsu Arakawa)
• WORLD TAG TEAM TITLES: Luke Graham & Tarzan Tyler
• WWE NXT UK TAG TEAMS: Grizzled Young Veterans (James Drake and Zack Gibson)
• WWE NXT TAG TEAM: Adrian Neville & Oliver Grey
• WWE SD TAG TEAM: Heath Slater & Rhyno
• WWE RAW TAG TEAM: Kurt Angle & Chris Benoit
• WWE Woman’s World Tag Team: Donna Christantello & Toni Rose
• AEW Tag Team: Frankie Kazarian and Scorpio Sky
• AEW Women’s Tag Team: Diamante and Ivelisse