>>1
I understand that some gay men are strongly attracted to straight or straight-acting men (Similarly, some straight men dig lesbians and some straight women dig gay men [Unattainability?]).
Maybe you could let on that you were bi-curious and the men would come out of the woodwork?

Beyond that I have no idea how to help you as I don't know how gay men meet each other (unless you count bars, bathhouses and glory holes).

Perhaps keep a discreet symbol of the gay community on your person? Rainbow flag?