What type of genioplasty is right for me to have a more narrow, feminine chin?

I dislike my U-shaped chin. I've always wanted a more narrow, feminine chin coupled w/ a longer nose that's more arched at the tip to balance out my face. Ariana Grande's chin and nose has served as my ideal. Attached is my side profile (unedited) vs AG's side & unedited + edited photos of me w/ AG inspiration. 2 Q's 1. Which surgical techniques will give me the shape I want? I've researched sliding genioplasties and various osteotomy techniques. 2. Estimated cost for genioplasty + rhinoplasty?