There arnt really any gripping MMOs out there now. I played Black Desert Online not too long ago. That was alright. Quite a lot to do on there but maybe a bit too much. I recently went back to play WoW which seems to suit casual players very well.
I don't think many companies are making MMOs anymore due to the target audience are heading more towards games that fit into the e-sports category and microtransaction category because thats where all the money is to be made.
- Lineage 2 classic is being updated correctly with no real p2w (still heavy gold transfers tho), heavy grind though and you should get another buffer + on top of gold purchases this is going to be a grind
- ArcheRAGE (archeage private server), semi-p2w but nothing like the official servers, Archeage was the chosen one before Trion ruined it, the private servers are doing a good enough job imo. Don't play archeage though if dungeon runs and strong pve content are your thing, game is heavily pvp focused and does a good job of it.
- Mir Valkyrie, promising mir server, you should give it a try