If you want a Discord with like-minded musicians, we could use TheSauce Community Discord. https://discord.gg/MkMkEnx
TheSauce hosts a lot of compos and has musicians that are working to make a habit of music-making. Since Weekly Music 2021 is a compo but it's not hosted at ThaSauce,, we could chat under #other-compos channel and talk in real-time.
I know that streak.club also has a Discord as well but I'm an admin in ThaSauce and therefore could at least create us a channel!