Yessir! And while Whitemane and Mankirk are the two primary clusters, Grobbulus is a fun alternative as it’s unclustered. It’s what I call a “micro server” (we aren’t dead!).
We have Legacy on the alliance side (Legacy & Tales from Naxxramas: Four Horsemen defeated) currently 13/15 Naxx progression, and we have Requiem on the horde side who has been working on MC and BWL. There’s also a reroll campaign happening now if leveling new is of interest to you 