Returning from MoP

So I used to play quite a bit from WotLK to MoP, and raided pretty heavily. My toons were all on the Misha realm. Have recently returned and the realm seems so dead. Was wondering what are some good realms for Horde players, are guilds still social as i loved this aspect of the game. Raiding and doing dailies or random achievements together and having fun together. I have a couple low level toons on Dalaran as well and though it seems better than Misha still not super active. Or is this just the case in general, i remember trade chat being so active and people just being more social in the game.