Any villainess manga where the mc is actually a villain/villainess and not some "I've-reincarnated-as-a-villainess-but-I'm-going-to-ignore-that-and-be-all-nice-and-friendly-as-if-that-doesn't-defeat-the-whole-purpose-of-my-existence" I've already read The Villainess Reverses the Hourglass and The Villainess is a Shadow Queen
The Villainess Lives Twice (she has people killed and stuff) I Want To Be You (dual POVs of 2 girls, one of them a "villainess") The Way to Protect The Female Lead's Older Brother (again, no hesitation in killing, threatening or hurting people)
Any villainess manga where the mc is actually a villain/villainess and not some "I've-reincarnated-as-a-villainess-but-I'm-going-to-ignore-that-and-be-all-nice-and-friendly-as-if-that-doesn't-defeat-the-whole-purpose-of-my-existence"
I've already read The Villainess Reverses the Hourglass and The Villainess is a Shadow Queen