boss bitch female mc isekai manhwa?

https://www.mangago.me/read-manga/i_m_a_martial_art_villainess_but_i_m_the_strongest/

https://www.mangago.me/read-manga/beware_of_the_villainess/

Untouchable Lady
I Tamed a Tyrant and Ran Away
This Girl is a Little Wild
I've Become the Villainous Emperor of a Novel
The Lady and the Beast
Crimson Karma
Light & Shadow

Not all are isekai, but all FL's in these are really strong (⌒▽⌒)