As a viewer or as a player? As a player, I’d be interested interested in joining for Dota, and maybe CS2. As a viewer, Dota, CS2, or maybe some of the classics that are easier to understand on a surface level like Age of Empires or Smash Melee. That said, it’d obviously depend on specifics; as much as I love any excuse to play more Dota, for example, I only have one consistent teammate and tend to rely on randoms for other lanes.