I'm going to show my age with this one - what got me writing male homoeotic fiction was movies like The Outsiders and Taps. As a masc queer woman, dabbling in stories with those characters was lit-erotic for me. I moved on to GL fics with the Facts of Life ... but that's for a different thread. 0__0
I didn't discover Japanese homoeroticism until I got my hands on the twisted tanbi titles of Tanizaki Junichiro in the late 80s. After college, it was anthologies like BeBoy Gold and Kinniku-Otoko. K-Ot had so many great stories; anything written by Matsu Takeshi was a favorite because of how unserious those stories were. They were gei-komi, though marketed as BL (remember, bara is not a genre, it is a slur.) When I began writing pro in the mid-2000s, all the pubs wanted traditional BL stuff. So, I fell back on my favorites from that genre, Moduru Motoni and Mika Sadahiro.
Sorry to ramble... I had too much ice cream after dinner and it makes me chatty.
--T