Hello I am looking for a nice turned based mmorpg to play. I am looking for a nice game to play with 2-3 people. I prefer games where you only have one or one character and a pet.

Features I would like:
-Nice amount of classes and nice skill system.
-Turn based combat (preferably not grid based, but tactics combat is okay too)
-Decently challenging content would be nice.
-Mainly about going through dungeons with a small-large party (random dungeons would be nice)

Games I have tried a little
-Atlantica online.
-Wizard 101 (didn't play much)