I began this discord server focused on Early Music (for simplicity's sake, we could say before 1750 though this is something that is hotly debated on the server), and it is both active and serves as a good place for information and discussion pertaining to its focus.
It also has a section for people to post their compositions and performances, music they just happen to be listening to, scholarly things they're working on, instruments they've acquired or constructed, or even things not pertaining to Early Music particularly.
So in short, it's a place to facilitate community and exchange for musicians, performers, instrument builders, composers, theorists, and music lovers who want to explore Early Music (or dispense their own pearls of wisdom)........if you're interested, here's the link:
https://discord.gg/myuSdpXF