this list contain:
*reincarnation
*Strong female Lead
*royalty (king,queen,prince,duke,...)
*rebirth
*time travel
no promo / no one-shot
No manga / no manhua
+9.0 rate
Interesting Historical Romance III (manhwa):
https://www.mangago.me/home/mangalist/1783771/
Interesting Historical Romance VIII (Manhwa):
https://www.mangago.me/home/mangalist/2946057/
Interesting Historical Romance V (manhwa):
https://www.mangago.me/home/mangalist/833966/
OP MC (MALES ONLY)
Martial Arts
Fantasy!
Reincarnation!
Second chances!
New Life!
Manhua!
Manhwa!
Weak To Strong!
(LITTLE TO NO HAREMS
This is just a list of manhwa/manga which has main character/s who gained a second life in the modern world setup.
Main Characters: Reincarnated/Second Life
Settings: Modern Society
The list is in no particular order.
Feel free to suggest anything in the comment section.