I like
Lavinia, it's a family name for me. Interestingly I don't find it frumpy at all - it actually has more of a dominatrix vibe in my mind!
Leocadia is awesome. I love that one. It's artsy and sharp.
Bendetta is neat, I've never thought about this one. It's got a sporty yet cozy feel to it.
Magdalene is gorgeous, but I wouldn't have guessed at the pronunciation you provided.
Helle is bitchin'.