Crossing Code (fantasy), Ludwig Kakumei (dark fantasy; romance is like, one chapter but it’s really good and a short manga overall, so I’d recommend it), Bastard (dark), Aku no Hana (idek if I’d really call it romance and he ends up with another girl but it’s a dark and messed up manga and good overall), Devils Line (dark supernatural), Oldman (fantasy; romance is secondary), and Ojojojo (which is neither fantasy nor dark but I’d recommend it to literally anyone looking for a good, general romance).
Here are some dark fantasy! (≧∀≦)
https://www.mangago.me/read-manga/melt_bless_you/
https://www.mangago.me/read-manga/flowers_are_bait/
https://www.mangago.me/read-manga/olgami/
https://www.mangago.me/read-manga/pure_villain/
https://www.mangago.me/read-manga/340_days/
https://www.mangago.me/read-manga/confined_together_with_the_horror_game_s_male_lead/
https://www.mangago.me/read-manga/even_monsters_like_fairytales/
https://www.mangago.me/read-manga/hotaru_no_yomeiri/
These two are my current obsessions ヾ(☆▽☆)
https://www.mangago.me/read-manga/for_your_murder/
https://www.mangago.me/read-manga/a_ghostly_song/

hey y’all i’ve only ever read yaoi but i’m lowkey interested in trying out hetero stories. assuming i haven’t read any can y’all give me the BEST (they don’t gotta b niche bc im new to this genre ) hetero romance. i want my heart to palpitate and cat to THROB gng