I would be curious about your favorite coop games. I often find them a big lacking, often being a bit unbalanced. An example is Battle for Hogwarts, where one game can be a walk in the park and another absolutely impossible and rarely is there a balanced match.
It’s a campaign based game but Wonder Book. The scene/play area is nicely made and it’s a very accessible game both for younger people and those new to co-op & campaign games.