Rai Nations is a session based nation server where people meet up on scheduled days and play together. It usually hits over 20 players at peak and there is plenty of room to make your own nation. The staff is friendly and will help out if you need something.
The server runs on set sessions so it feels easier to keep up. It is good if you want a second home for nation style play without needing to grind all week just to stay caught up.
There is a merchants village where you buy and sell items without doing normal villager trading. The economy uses Credits for most stuff like materials and enchants. There is also Rai Kurrency which is rarer and you can find it daily in chests and it is used for heavier stuff like Netherite enchants.
There is also lore going on with something called the Unknown Fragments. Five beings split off from the original Unknown and they can cause weird shenanigans. In season one the players barely beat the Unknown and now the fragments are out there.
