forum.freeciv.org

I'm experimenting with fluxer, platform a bit like discord, but open-source.
Experimental freeciv channel: https://fluxer.gg/nYYe8LBh

This might be the place where, in the future, you most easily find opponents for multiplayer games.
On the cazfi.net servers, I see that most cases where there's someone waiting for opponents eventually end without a second player ever connecting.