Guys help. I need recomendations

Please do not judge. But one of my favourite manhwas are "the viridescent tiara" And "The Precious Sister of the Villainous Grand Duke"

I know they might be contradictory and eh. But pls, can u tell me any other manhwas that are similar to it. Even though most priv I know it and have read it but would not mind help. I do like some obsession and romance. 😉🫶

And in general, if u have any suggestions, drop it down.