I see a few for specific OS's and VM related tools on lemmyverse.net, or smaller ones: vfio@lemmy.dbzer0.com

Depending on what you're looking for, you could cross post to a community like selfhosted@lemmy.world or programming@programming.dev to get more feedback

There's one that I mod over at virt_manager@programming.dev

It's a bit empty atm as I've been busy with IRL tasks but feel free to ask questions or post vm related things there!~🤗

I'll try to provide some help whenever I can🌻