Honestly, the base game Sims 4 is lovely to have, but it's so basic, that it really leaves a lot to be desired. I've mentioned in the past there are some packs that are must-haves, and allow me to re-iterate which they are:
Expansion Packs:
- Get To Work (Moderate Priority)
- City Living (High Priority)
- Cats & Dogs
- Seasons (Highest Priority)
- Get Famous (Moderate Priority)
- Discover University
- Eco Lifestyle (High Priority)
- Cottage Living (Highest Priority)
Game Packs:
- Spa Day
- Dine Out
- Vampires (Highest Priority)
- Strangerville
- Realm of Magic (Highest Priority)
- Dream Home Decorator
Stuff Packs:
- Bowling Night Stuff
- Fitness Stuff
- Laundry Day Stuff
- Tiny Living Stuff (Highest Priority)
- Paranormal Stuff
Kits:
- Industrial Loft Kit
- Desert Luxe Kit
- Courtyard Oasis Kit
Free Pack:
- Holiday Celebration Pack
If need be, I could make a tier list about them lol