The one I referenced there was the Dirtywave discord, highly recommend checking it out, and I think they have a channel for partner servers. The lines forum is also a great community if you're in that musical space. I couldn't name a good music discord for lets say traditional genres or general production, the thing I like about what I've found is it's niche. Like once I posted a work in progress and someone active in a scene for the genre I was going for messaged me and we chatted about our approaches and traded some instrument and project files we'd built on the device, all though discord.

So to me I want that type of community, what platform it's on isn't really something I care about all that much.