I checked the Lifebot one but it's all in Korean.
None.
This one's pretty active I think (I never check it):
https://discord.gg/r7zhJD
Memes gather, and now my watch begins. It shall not end until my death. I shall take no wife, hold no lands, father no children. I shall wear no crowns and win no glory. I shall live and die at my post. I am the sword in the darkness. I am the memer on the walls. I am the shield that guards the realms of memes. I pledge my life and honor to the Meme's Watch, for this meme and all the memes to come.
SC1 Koream Mapmakers (SCKM), most active Korean map making Discord Server
https://discordapp.com/invite/NN942rf
None.