PC Games to play in local co-op?

https://beehaw.org/post/619770

PC Games to play in local co-op? - Beehaw

I like to play on the same computer with my bf, and recently we’ve started to get tired of MAME since we’ve been playing our faves on repeat for so long. The other game we play is Spelunky, since is the only local co-op game I have on Steam. I ask because Steam summer sales are close and I can give him a surprise :D Thanks!

I've heard nothing but good about Lovers in a Dangerous Spacetime. Haven't played it myself.
Lovers in a Dangerous Spacetime on Steam

Explore a neon galaxy in your very own battleship in this 1- to 4-player couch co-op adventure.

I feel like Lovers gets pretty stressful at times if you're playing 2p. I prefer more chill co-op experiences.