Kill the villainess seems like it'd be right up your alley! It's also completed :)
Common theme but I really enjoyed these two:
https://www.mangago.me/read-manga/the_selfish_romance/
https://www.mangago.me/read-manga/the_couple_breaker/
Romance isn’t like the main genre but I love these:
https://www.mangago.me/read-manga/my_in_laws_are_obsessed_with_me/
https://www.mangago.me/read-manga/a_fortune_telling_princess/
This one is just a guilty pleasure I hate the body proportions but still a good read
https://www.mangago.me/read-manga/three_months_of_summer/
personal favs:
The Tyrant's Only Perfumer
The Monster Duke Mistook Me for His Wife
I Will Change The Genre
Age of arrogance
Revenge Wedding
Lily Bush's Substitute Marriage (smut)
Once upon a time (smut)
How To Reject My Obsessive Ex-Husband (sex at the end but didn't appear)
I've been reading a lot of BL, but I'm trying to expand my horizons. So far I've read Death is the Only Ending for the Villainess, I Thought it was a Common Isekai Story, and Fell into a Reverse Harem Game. I'm currently reading The Broken Ring. As you can see, I love Villainess troupe and all of these are historical. But I'm open to any of your fav straight stories, as long as they are good. (If there is some smut, that's good too). Lay them on me!