For me, I'd say Helldivers 2 for just random online experiences. When I'm playing with a friend though, I actually prefer playing Palworld, it's a lot less chaotic, but still really fun to mess around in.
I likes a bunch of games, but most of them are single-player. Like RPGs and stuffs though.
If I really had ta pick, I'd have ta go with Destiny2. I'm like really bad at it, but it fun as hell ta run around in a cape and shoot alien-bugs wit my golden gun. Halo isn't bad either, but no capes.
Really wanna try SpaceMarine too. That looks fun, but I haven't gotten ta try it yet.