Good lord man, every week you're looking for a new sponsor ...
For how many years now?
You know all the best sites, you just have to stick with them and tweak your own sites.
Imlive does very well with tranny traffic, perhaps the best I've seen. iFriends does surprisingly well too as does LJ, but I've probably told you all this 20 times by now.
Just push WHITE trannies, unless you have an Asian site obviously.
Too many Asians are just transvestites, so do a little homework and find out which are *real* trannies and promote them directly.