What are some unique, lovely, pretty, etc. girls names?

So my sister-in-law is pregnant with a girl! I'm a teen girl but my suggestions of names have been too plain for her and my brother. They like unique names (but nothing like Nevaeh though). Some names they're considering are: Marina, Aurora, Raina, and Delaney but they want more suggestions. And although they don't want a traditional first name, they are thinking of more traditional names for the middle name: like Grace, Claire, Rose, Charlotte etc. So if you could some suggestions of unique girls names with traditional middle names that would be amazing! Best answer will either go to the longest list or the list with the most names my sister-in-law and brother like. Thanks for your help!