since games are pretty optimised for 1 player but there still are some boring parts which (probably) can be speeded up by coop.
Also sign up for 16 people coop
If you are interested in trying any coop - post here and also post which game you want to coop. (probably SS2 coop might be a thing since game isn't that fast as others)

Im down for SS2 coop, although I would have to educate myself on speedrunning it first.

Yeah, I'm down to SS2 coop, although I recall there is some issue with high ping. There could be several possible skips assuming the game only checks chapter completion for one player. As for other SS games, we (SSDQ team) already made a coop run of TSE classic, unfortunately it's still being processed after many years...