have you read dead man’s switch
'My in-laws are obsessed with me'-- it's straight historical romance, has the time travel stuff and it's a good read since the fmc is really smart and also really likeable. Art is really good too
OH, you would love "surviving romance" then. AND ITS NOT ROMANCE FOCUSED AT ALL. indeed it started with mc getting isekai(d) to a romance novel but it actually turned out to be novel with zombie apocalypse. she needed to survive so she seeks out caramaderie from 'another characters'
Deadly Night
yeah, i read up to chapter 29 and i couldnt get into it. plot isnt that crazy, i found the mc annoying and stupid, ml had a dickhead personality, and i could not feel the romance (normally i would just ignore it if it bothered me, but this story kept shoving it into my face every chapter & i literally had to skip the smut scenes). i might just be extremely picky
this isn't time loop based but it is a mystery with lottts of plot twists. it has one of the most unique plots ive ever seen and while still there, the romance is very much on the sidelines. i suggest u check it out if you havent already, its my fav manhwa ever https://www.mangago.zone/read-manga/sangyang_the_wanderer/
it doesnt even have to be bl nor romance focused, any well-written story with a good plot, preferably horror/thriller etc but doesnt have to be. stuff like being stuck in a loop, with mystery components and plot twists OH and a strong/smart mc who isnt a pussy. none of that dumbass bs