So I have played a LOT of sims 4 recently and have a few expansions. My first recommendation is to only buy them when they’re on sale (Origin do a lot of sales for packs so this is quite often), or buy a bundle (3 for £45 is the U.K. price, but I don’t know the conversion to euros sadly). There are three types of packs because EA are vultures, and the bundle is essentially one of each pack. The three types of pack are expansion packs, stuff packs (the same as they were for sims 2/3), and game packs (which are kind of like little expansion packs with very specific gameplay additions?)
Now for which packs I’d ACTUALLY recommend.
Expansion wise, Seasons is the most significant addition for gameplay stuff, but there’s no new world. There’s Cats and Dogs if you like playing with pets, but you can’t control the pets on Sims 4 apparently (i do not have the pet expansion this time). If you want a nice world map, I’d recommend City Living (apartments and a city map is always a yes from this city boy), or Snowy Escape (Japan themed items, world and also JAPANESE FASHION which is the nicest clothing in the game, in my opinion).
Game pack wise i only have two, but the only one that’s a definite recommend from me is Parenthood, because I’ve gotten a lot of good gameplay additions from it. If you don’t play with families (especially kids) then it’s probably not a good one for you. Strangerville is supposed to be quite fun and there’s an actual story mode to it which is cool if you’re into that (i do not have this one but I’ve heard it’s good). The strangerville world is also quite pretty (even if the houses the Sims designers built are not) .
Stuff pack is definitely Tiny Living for me - all the furniture is really cute and I think there’s a couple of very nice clothing items too
Oooh thanks a lot for the recommendations! And yeah, I was only gonna get one if it's on sale xD I've been wondering if the college one is any good because I always liked that in Sims 2. I also liked the seasons one in Sims 2 so that one sounds good as well. But daaamn, now you made me want to get the Snowy Escape one because Japan items sound awesome :
Also I actually played some Sims today and basically made a nerdy gamer girl xDD