I only listed the ones I have tried. The most active server atm is lavalon, but it sucks. The admin is a money-hungry person. She's been making bad decisions lately. The server is becoming a joke. Same goes for evo. The staff are a bunch of unprofessional clowns. They take a million years to fix a simple bug. Their top priority is updating the cash shop with expensive items. They hire people who can't speak proper English and are biased. The other two servers are dead. Haltcraft is a donator server. You want cash? Then donate. It's the only way. It's a waste of money and time though. FantasyDR is the absolute worst. That server has a corrupt staff. They will ban you if you're not a donator. You can expect it to shutdown faster than the other servers. Don't ever think about playing this garbage server. They will screw you over.
Shadowlight dgn is another private server. It's ch 3 so it's boring as hell.