https://www.mangago.me/read-manga/dore_ga_koi_ka_ga_wakaranai/ (GL; college setting; multiple girls - classmates, upperclassmen and a teacher - like the MC)
https://www.mangago.me/read-manga/i_m_the_only_one_for_miyaji_miyuki/ (GL; high school setting; MC proposed to 4 different girls when she was a kid, now they all want her to be their girlfriend)
https://www.mangago.me/read-manga/komyushou_vs_yuri/ (GL; episodic chapters; MC attracts every girl she comes in contact with; later chapter has her students being attracted to her, as well as her sister and mother
https://www.mangago.me/read-manga/namekawa_san_won_t_be_bullied/ (GL; sexual harassment masked as a goofy gag; author seems to be a man, so it's written for the male gaze; later chapter has a child fall in love with and kiss the MC)
https://www.mangago.me/read-manga/the_death_defying_princess_creates_a_yuri_harem_to_survive/ (GL; MC transmigrates to the past before her death every time she dies due to women cursing her, and has to make them fall in love with her to avoid death; some dub-con and it's likely going to have sibling incest)
Harem but theres a genuine love interest. They all LOVE that one person. Doesnt matter what genre (bonus points if its sekai/transmigation)