I moved from famfrit because it was dead and no one did endgame content for the most part besides T6. I'm now in leviathan and I love every second of it! Every day there are T9+ learning parties, T9+ clear parties, T9+ farm parties. You see T8 learning parties sometimes but for the most part T6-8 you can learn just from DF so meh.

I definitely recommend Leviathan or Excalibur. I heard Gilgamesh is also very end game friendly.