Played and liked: on itch.io (Pay what you want): Beach Buddies Brawl VS Frog Smashers VS MergaZerds 2 Player VS Pool Party Arena VS
The list hasn't been updated in a while, so it's missing a few games (notably Unrailed and Jackbox Party Pack 6) Based on your comment, I'm assuming you would be fine with any local multiplayer, not just split screen? You just have to plug your controllers into your pc (Xbox works the easiest, but Switch Pro and PS4 also work fine if you play Steam games) and it should work.