I found Olympus SMP and it is a survival server that keeps the classic vanilla feel while still having some unique mods like Stellarity that makes exploring more interesting.
The server has a growing active player base and the vibe seems friendly. Staff is around and they aim for fair gameplay so it does not feel scummy.
People build big bases run a player driven economy and go on adventures together. They also do community events and challenges so there is usually something going on.
It supports both cracked and premium players so more people can join in.
