Pinny saidPlease say that you are in a fraternity not a frat. "Frat" is a pejorative adjective mainly used by non-Greeks to stereotype Greek activities, life, and behavior. It is Fraternity not frat you don't call your country a cunt.
As for your question, there is absolutely a ginormous thread about Greeks in "All things gay" where we all just list out affiliation and that is it. We also fend off the baddies who just come in there to say "LOL YOU BOUGHT YOUR FRIENDS".
Thanks so much for saying that... you don't happen to be a Pikapp? Anyways, to the OP, I am not so sure why you're looking for a guy in a fraternity exclusively. I mean, there's nothing wrong if you do, but I have dated many a "masculine" guy as you put it, and only one was in a fraternity, and we had both been out of college by then.
I think you should get this idea of "masculine" out of your head. Your view on it is stereotypical and you're failing to see it's a societal construct, i.e., there's no inherent meaning to it and it's purely subjective. You're more than free to date whom you choose and find guys whom you are attracted to, just don't go around saying it's because they're "masc..." what an awful umbrella term to dismiss someone under.
Finally, I think you find guys like that outside of your fraternity. Finding a guy, who is in a house or not, should not be a deal breaker if you indeed really like him. Change your perspective to find a guy that makes you happy as you define happiness whether he is "masc" or not, in a fraternity or not.
Pi Kappa Phi