Isekasi BL

Sadly I only know of one isekai BL and it's still currently ongoing. It's called Sweetie, sweetie, sweetie

Reverse isekai kind of? The MC come from a fantasy world to ours
https://www.mangago.me/read-manga/yuusha_to_maou_no_love_one_room/
https://www.mangago.me/read-manga/kishi_sama_ikuseichuu_to_doukyo_shimasu/

Regular isekai
https://www.mangago.me/read-manga/itoshi_no_kemukujara/
https://www.mangago.me/read-manga/maou_ga_papa_de_ore_ga_mama/

I know one more that's in color that I haven't read yet, I think it's something called "I'm in my sister's dating Sim "or something like that

Found it it's this one
https://www.mangago.me/read-manga/stuck_in_my_sister_s_dating_sim/

I only know this one
https://www.mangago.me/read-manga/i_have_to_be_a_great_villain/