Up! Up! Up!
'Cause I wanna know the sauce tooヾ(☆▽☆)
https://www.mangago.zone/read-manga/castehate/ i am sure its the one you are talkin about...
yes! that's the one, it has been so long since there was an update ahah...
the title has been found! tbh even tho there are only some chapters out and the next update is unknon, I think its worth trying out to read. the premise of the seme having to choose between two ukes isn't seen as often as one uke choosing between to two semes
bl manga about animal people. the top has two love interests, I can't remember what animal the top is but the to bottoms are a snake (childhood friend) and an "ugly" creature who pretends to be a rabbit to attract tops