That's abit hard to recommend cuz alot of Mc or Ml actually straight at first until they feel the chemistry between them. Are you looking for bl where mc or ml emphasise they prefer woman?
Like this > https://www.mangago.me/read-manga/crossing_the_line_1/ or this > https://www.mangago.me/read-manga/nekama_punch/
‘Two souls’ and ‘tale of the yellow dragon’ are historical.
‘Our sunny days’ is a cute story although season 1 just ended so gotta wait for the rest. ‘Boy girlfriend’ has cross dressing too (both were still straight then) but same thing season 1 just ended.
‘BL motel’ is completed both were straight at first!
‘The pizza delivery man and the golden place’ its currently on Haitus.
‘Dawn of the dragon’ is pretty good too!!
https://www.mangago.me/read-manga/between_coincidence_and_inevitability/
https://www.mangago.me/read-manga/crossing_the_line_1/
https://www.mangago.me/read-manga/the_world_of_pieces/
Idk if these r correct but they did fuck girls before
I am looking for a bl
one of them was straight at first