https://www.mangago.me/read-manga/hallelujah_baby/
Just in case you haven't seen it yet, I dunno if its underrated tho
These!
https://www.mangago.me/read-manga/500_nen_no_itonami/
https://www.mangago.me/read-manga/sex_lies_bussy_wrap_a_hunt_for_the_omega_slayer/
https://www.mangago.me/read-manga/koi_to_wa_yobenai/
I also have a list if you've already read those:
https://www.mangago.me/home/mangalist/996024/
https://www.mangago.me/read-manga/boku_no_omawarisan/
https://www.mangago.me/read-manga/sonna_ni_iu_nara_daiteyaru/
https://www.mangago.me/read-manga/family_now_and_forever/
https://www.mangago.me/read-manga/my_dear_agent/
https://www.mangago.me/read-manga/kimi_to_nara_koi_wo_shite_mite_mo/
I have a whole list on ba/to if you want!
bl manga recs u think is underrated (=・ω・=) wouldn't mind manhwa/manhuas if the artstyle is nice!