A lot of groups can be found that accept Forsaken in general. As some have pointed out in the thread there are specific themed Forsaken groups.
It really depends how you wish to follow through with your character’s story and motives. A lot has gone with the Forsaken and you could say they’re in the midst of a identity crisis after Sylvannas, the desolate council and the change of Leadership in the Horde as well.
Many routes to follow as well for yourself some can be as simple as;
- Wanting to prove your character still wants to be with (or against) the Horde.
- Character wants to just stick to his people. (Circling around your Forsaken guilds)
Some RP takes fold around Orgrimmar as well still. Also there are few roaming groups like the Rotters and Forlorn.
They can be found around Silverpine / Tirisfal sometimes (?) I can’t say for certain.
I will also plug my own group shamelessly, we’re open to recruitment and could do with some more Forsaken folk.
Though it depends entirely what you wish to do! - I can wholly recommend all the guilds linked above as well. Hope you find a place to call home soon!