https://www.mangago.me/read-manga/hidamari_ga_kikoeru/
This is one of my favourite shounen ai
I doubt I have anything you haven't read already, but maybe:
https://www.mangago.me/read-manga/protect_your_purity/
https://www.mangago.me/read-manga/it_s_easy_to_fall_into_samcheonpo/
https://www.mangago.me/read-manga/rouman_no_okuni_de_aimashou/
https://www.mangago.me/read-manga/given/
https://www.mangago.me/read-manga/slow_starter_ichikawa_kei/
https://www.mangago.me/read-manga/tonari_no_usotsuki_suzaka_shina/
https://www.mangago.me/read-manga/a_season_of_dusk/
https://www.mangago.me/read-manga/hungry_souls/
https://www.mangago.me/read-manga/stranger_in_the_mirror/
https://www.mangago.me/read-manga/spinach_bouquet/
https://www.mangago.me/read-manga/don_t_call_me_dirty/
https://www.mangago.me/read-manga/wind_blowing_tonight/
https://www.mangago.me/read-manga/bad_contact/
Bls that have the trope strangers to lovers
No meeting in the past, no "We actually met as kids", no "you may not remember this but you saved me years before". Just strangers who met, become friends then fall in love on the way
I'm ok with strangers to enemies to lovers too. As long as it's strangers to lovers. I don't mind what happens in between