I found a cracked SMP called Elements Cracked SMP and it is built around Avatar The Last Airbender. The server is pvp based so it feels competitive and active.
It keeps things simple with little to no mod installs. You can make teams and build up empires with other players.
It also supports voice chat so people can talk and plan stuff together. There are YouTubers and streamers who record on the server too so it has that content creator vibe.
