I personally like the idea of going to Matrix, but discord would be a fine alternative too. I manage some bots in a couple servers (where one of them mirrors some IRC channels and also monitors git events). I think the only complaint some may have is the OSS factor, but I don’t think that’s too much of a big deal here. Discord has recently been trying to market to much more than just gamers, so it could be an alternative.
Regardless of which one, it’ll reduce the amount of chat apps I even have open in the first place…