Here are some of my fave non-high school ones:
https://www.mangago.zone/read-manga/the_beast_must_die/
https://www.mangago.zone/read-manga/passion_1/
https://www.mangago.zone/read-manga/love_in_orbit/
https://www.mangago.zone/read-manga/seifuku_wo_matoeba_umaku_uso_ga_tsuketa_no_ni/
https://www.mangago.zone/read-manga/momento_scarlet/
recently read https://www.mangago.zone/read-manga/majo_to_neko/ and LOVED it, some of my other faves are:
https://www.mangago.zone/read-manga/my_pudgy_co_worker_is_a_snack/
https://www.mangago.zone/read-manga/shounen_no_kyoukai/
https://www.mangago.zone/read-manga/neon_sign_amber/
https://www.mangago.zone/read-manga/tsuki_wa_michikake_kemono_no_koi/
https://www.mangago.zone/read-manga/terano_kun_to_kumazaki_kun/
https://www.mangago.zone/read-manga/perfect_propose/
My faves https://www.mangago.zone/read-manga/samurai_omega_to_akutoku_shachou/
https://www.mangago.zone/read-manga/the_time_a_gangster_was_reincarnated_as_ranmaru_mori/
https://www.mangago.zone/read-manga/apron_yankee/
https://www.mangago.zone/read-manga/shinigami_wa_korosenai/
https://www.mangago.zone/read-manga/koi_wo_suru_tsumori_wa_nakatta/
https://www.mangago.zone/read-manga/matsuyoi_no_oni/
https://www.mangago.zone/read-manga/isso_koe_ga_nakattara/
I'm re-reading this rn and it's so cute, lovely little healthy relationship: https://www.mangago.zone/read-manga/kimi_ni_koisuru_hazu_ga_nai/
BL manga recs please! Non-high school ones preferably