isekai yaoi?

https://www.mangago.zone/read-manga/omega_ni_dake_wa_naritakunai_isekai_tensei_shitara_ane_no_bl_manga_no_nakadeshita/

https://www.mangago.zone/read-manga/to_deny_the_route/

https://www.mangago.zone/read-manga/the_affairs_of_the_other_world_depend_on_the_corporate_slave/

https://www.mangago.zone/read-manga/reincarnated_into_demon_king_evelogia_s_world/

https://www.mangago.zone/read-manga/i_became_the_lousy_side_top_official/

https://www.mangago.zone/read-manga/summoning_a_bl_fan_to_another_world/

https://www.mangago.zone/read-manga/kiss_the_abyss/

https://www.mangago.zone/read-manga/to_be_or_not_to_be/

https://www.mangago.zone/read-manga/when_i_tried_to_enjoy_the_life_of_a_neglected_husband_i_ended_up_taking_the_route_of_affection/

https://www.mangago.zone/read-manga/how_to_survive_as_a_player/

https://www.mangago.zone/read-manga/cozy_obsession/

https://www.mangago.zone/read-manga/stuck_in_my_sister_s_dating_sim/

i'm not entirely sure if these count as isekai since it's more like ... transmigrating to the past/reincarnating in someone else's body:

https://www.mangago.zone/read-manga/grieving_you/

https://www.mangago.zone/read-manga/kill_the_lights/

https://www.mangago.zone/read-manga/again_1/

https://www.mangago.zone/read-manga/rebirth_1/

https://www.mangago.zone/read-manga/turning/