Bls with threesomw?

https://www.mangago.me/read-manga/the_boundary_of_delusion/

Peak

https://www.mangago.me/read-manga/tachi_to_neko_docchi_ga_ii_no/
https://www.mangago.me/read-manga/koitomo_triangle/
https://www.mangago.me/read-manga/from_points_of_three/
https://www.mangago.me/read-manga/triangle_lovers/

https://www.mangago.me/read-manga/now_open_door/
https://www.mangago.me/read-manga/i_became_a_first_class_guide_thanks_to_my_childhood_friends/
https://www.mangago.me/read-manga/a_blessed_night/
https://www.mangago.me/read-manga/welcome_to_the_yaoi_research_club/

There's a couple of threesome scenes, but it's with a clone:
https://www.mangago.me/read-manga/the_worst_guy_in_the_universe/

4p, but it's my favorite +3p right now:
https://www.mangago.me/read-manga/three_nights_we_really_do_it/