Let me know uf you find reccs all i can think of is idiots dont catch colds
did my best (=・ω・=) some fit ur description better than others!!
https://www.mangago.me/read-manga/takara_no_biidoro/
https://www.mangago.me/read-manga/golden_sparkle/ (kinda)
https://www.mangago.me/read-manga/you_and_i_can_t_do_this/ (also kinda)
https://www.mangago.me/read-manga/don_t_mix_business_with_pleasure/
https://www.mangago.me/read-manga/a_trace_of_the_wonder/ (different vibe but kinda fits still :p)
https://www.mangago.me/read-manga/the_time_a_gangster_was_reincarnated_as_ranmaru_mori/
https://www.mangago.me/read-manga/my_darling_liar_boy/uu/to_chapter-1/pg-1/
TSYM THIS LIST IS WHAT I'VE BEEN WAITING ILYY ε=ε=(ノ≧∇≦)ノ
(づ￣ ³￣)づ
bl with nonchalant cool guys that slowly fall in love bonus points if they're hot and known as popular players