Ruby isn't a star in the making lol. But she would certainly be a solid addition to AEW for name value and being a solid hand.
Murphy will 100% go to AEW, both he and Kenny have expressed admiration and it just makes the most sense. Tommy End almost certainly will choose AEW too.
Lana probably steps away from wrestling for a while.
Braun probably goes to AEW because they pay the most, or alternatively gets a gig or two in hollywood as a bodyguard or something lol.
Also people need to check themselves when they say Braun isn't a good enough worker, for AEW, he's extremely athletic and solid for a guy his size. He's not pulling out 5* matches but that would never be the point of him, he'd be used like a monster Gaijin would in Japan and he would be amazing at it.
as far as NJPW go I'd be just legitimately concerned for him taking certain spots as from my POV NJPW is fucking stiff as shit and Braun has not liked that in the past. I do think he could be molded into a good worker though, I think he has the tools, I just wouldnt START with japan, as that would be fucking harsh.
I agree with you on AEW though, he would be a special attraction and they can always use more of that. Shaq did say he wanted to wrestle again, Braun would be a sick opponent (fantasy booking). I also thing compared to their other big guys, hes a much better natural likable face. As much as I like Lance and Bryan Cage, they dont scream good faces to me. Braun has the cache and the kids love him. He would be perfect imo.
Ruby isn't a start in the making, she's a finished product for sure. Id rate her a lot more for her veteran presence and in ring savvy, shed make a great addition to AEW roster, and would likely be instant champion or contender in Impact. Either would be great fits for her.
Murphy I can see doign a stint in NJPW or impact to get even hotter before signing, not sure aew has room for more mid carders (unless they see him as more ofc) . That being said, I expect AEW to do some cuts soon, so he'd certainly still be an upgrade to most of their roster, especially in ring wise, dude is a beast