Good, fun, easy and cheap co-op games for a gamecircle

We're trying to start a Gamecircle (kind of like a Bookcircle) with friends and accuintances and I'm looking for some good Games to start. It is a daunting task to be honest, as there will be some first time gamers taking part. And for me as a singleplayer for year (mostly factorio and some round and grand strategy games) I dont even know where to start looking.
I'm looking for something like mario kart, which is easy to understand and fun for everybody to play, for the first months. Not cost more than 10$, be aviable through steam or gog or itch.io, preferably cross-platform (steam play works fine too).

On another note, has someboy tried something like this? how did/does it work out? What would be your Advice?