These are on the older side and the art style might be a bit off-putting, but from what I can remember, are the first BLs i ever read so here they go:
https://www.mangago.me/read-manga/eerie_queerie/
https://www.mangago.me/read-manga/boys_love/
https://www.mangago.me/read-manga/let_dai/
https://www.mangago.me/read-manga/earthian/ reply
