Akuyaku Reijou nano de Last Boss o Katte Mimashita
(I'm the Villainess, So I'm Taming the Final Boss)
Avoid the Bad End at all costs!. When her fiancé breaks up with her in front of the entire student body, noblewoman Aileen Dautriche is devastated—or she would have been, if that wasn't also the exact moment memories of her past life came back to her. She's been reborn as the villainess of a dating sim...and according to the story, she's slated to die at the hands of the demon king in every possible ending. Aileen's plan to reverse her fortune: Step one, get the brother of her former fiancé, Demon King Claude, to fall in love with her.
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If you enjoyed Bakarina, you're very likely going to enjoy this as well. I'd say it barely counts as an isekai, since the lead is far more her game self than Bakarina ever was. It's much more of a "reincarnated" type Villainess story. While she has used her otome game knowledge for the initial set up, subsequent uses are just as easily explained outside a game context so far (e.g. She didn't write threatening letters that are being made in her name).
What sets this one apart for me even in the first episode is that the villainess is actually still quite haughty in her demeanor. The majority of villainess stories reverse themselves by having the lead become either super-kind or super-brilliant. Aileen is still largely arrogant, dismissive, domineering, and not-particularly cautious about what she's doing in her survival scheme. She has a kind side to those loyal to her, but her open arrogance is what separates her from the mass of generic Villainess series.