I do not have any pre modern Era ones, but I do have vampire ones.
https://www.mangago.me/read-manga/bite_marks_and_fluorite/
https://www.mangago.me/read-manga/fangs/
https://www.mangago.me/read-manga/sweet_blood_shakeda_nene/
https://www.mangago.me/read-manga/ore_sama_na_doukyuusei_no_kenzoku_ni_narimashita/
All have smut, be warned. I honestly don't know many without the smut, but I'm open to reading them fr also not sure how green flagged they are, it's been far too long lol
I kinda wanna read a vampire Bl or a guideverse one. I usually don't come across these. Please share your rec's if you have any!