Well almost every game has unique classes.. might be more specific(melee,ranged,magic combat..)
Well you could try: Archlord , Florensia, Holic, Flyff, Cabalt , Ys
Beta, europe only ,
Imagine , Requiem , Shaiya , NosTale, Rohan , ZU, Regnum, Lunia, Perfect World, Last Chaos , Rappelz , Grand chase, Infinity and ofc Warrior epic[seen the add like 9000times] (last 3might be good :S ).. uhm yeah, enought maybe? :P
Well maybe not what you want , but I did like the classes of these games
