Responses
Here are a few:
https://www.mangago.zone/read-manga/seashell_boy_pearl_cum_boy/
https://www.mangago.zone/read-manga/after_a_meal/
https://www.mangago.zone/read-manga/the_boundary_of_delusion/
https://www.mangago.zone/read-manga/saye/ (They switch, but it technically counts)
https://www.mangago.zone/read-manga/lucky_paradise/
https://www.mangago.zone/read-manga/kimi_no_yoru_ni_fureru/
https://www.mangago.zone/read-manga/unromantic/
is there a BL manhwa/manhua where the MC is the top/seme?