Double-dipping here, sorry. Dunno if this would fit into feature request or Categories, so I'm posting on both.

Probably the biggest issue with discovery on Twitch is that, aside from prioritizing bigger streamers, it also prioritize bigger and newer games.

A good solution for this would be to add the option of having a parent category alongside the game as a category itself, so that streamers of niche games would still be discoverable.

Also, whenever a new big game launched, the entire parent category would benefit from it, instead of only the streamers playing said big game.

For example, a parent "souls-like" category would show anyone playing Bloodborne, that has a very small tribe of creators playing it, along with Elden Ring, Sekiro, Dark Souls 1, Dark Souls 2 etc.

Adding parent categories would also immediately expand the arsenal of streamers with niche followers, since that they wouldn't suffer much to change games within the same parent category.

I've applied for the Twitch Moderator's club as well. Give me a call.