i can recommend a bl series similar to that its name is hidden agenda
hmm maybe
https://www.mangago.me/read-manga/i_can_hear_it_without_a_microphone/
it's a bl btw!! (づ￣ ³￣)づ
Uke saved seme and seme came back as his boss
https://www.mangago.me/read-manga/modern_wizard_hunting_project/
Uke saved seme. Seme got a lot stronger and pretend to bump into the uke and stay with him.
https://www.mangago.me/read-manga/heaven_official_s_blessing/
Uke get isekai in a world and discover he his going to get married. At first seme act like he loves uke and really fall for him after a few chapters.
https://www.mangago.me/read-manga/exotic_flowers_at_all_corners_of_the_country/
Very manipulative seme. Make a lot of accident meetings.
https://www.mangago.me/read-manga/my_rival_said_i_was_his_boyfriend/
Plz recommend bl where seme likes uke so he finds a way to get closer to him or follows a plan like for example contract dating or pretending to bump into uk by accident or acting like all of their meetings are a coincidence