It's hard to discern which Corbin Fisher models are "gay for pay" and who's just lying. Frankly, I think most of them are gay or bi. If there are truly any straight ones, I vote for the ones who don't swallow a whole lot of dick like Cade and Dawson.
Irrespective of sexual orientation, my faves are: TJ, Lucas, Dirk, Cody, Gage, Travis and Derek. (Dirk and Cody are either retired or working for another company and neither is particularly well-endowed, but there was just something about them that...oh, well, you know. As for gay models, give me Spencer or Marc. (I really hope to see more of Marc in the future since he's only done one solo jack-off. We'll probably have to wait until he dumps his jealous boyfriend or sucks CF's dick.)