Best couch co-op for PS5?

Me and some friends have booked a weekend away to just relax and play PS5, so I'm looking for the best couch co-op games that we can buy to play (google isn't being much help, half the games suggested are online only!) We already have Nidhogg, Diablo 3 and Heavenly Bodies, does any one have any other suggestions please?

EDIT: What an amazing response, thank you for all the suggestions! I was hoping to get one or two replies :D