Shared Environments - Hosted Gameplay

Obviously this is more of a “MineOS” get started and run your own server forum / site.

But where are all the servers at that are being run here?
Does anyone else publicly host their server?
Is anyone looking for more people and players to join their server?
Is anyone interested in playing on my server?
What are you guys setting up your servers for in particular?

I just run one for my son and friends and myself. I’ve been using it since mineos crux 4 or there abouts