BL where one of them has an ulterior motive like revenge or scamming?

https://www.mangago.zone/read-manga/fake_romance/
fake romance to get what he wants

https://www.mangago.zone/read-manga/mobius_strip/
https://www.mangago.zone/read-manga/zetsubou_ni_nake/


these are ulterior motive but not revenge or scamming

https://www.mangago.zone/read-manga/love_trap_official/ (though i dropped this)
https://www.mangago.zone/read-manga/red_candy/
https://www.mangago.zone/read-manga/the_beast_must_die/