Baby Girl came early and we have nothing picked out! Help!

So my little peanut was due January 16, but decided that she wanted to join in all the Christmas cheer. So on December 17 my 3rd baby, 3rd scheduled c section, came into the world so fast, there was no time for a c section, no time for an epidural, and because I panicked and had my husband call me an ambulance and he came in the car, no time for Daddy to get in the delivery room on time. She made quite an entrance to say the least. Worst part is we still don't have a name! The lady that does the birth certificates is getting increasingly more annoyed with me as time quickly passes. My first two are Vivienne and William, so I prefer classic names, not popular, but not out there, you have never heard of names. My name growing up was very popular and there were at least 3 girls with the same name in my class, so I really want to avoid that. If that wasn't an issue some names I love are Ava, Olivia, Harper and Ella. Where we live though, those names are common right now. Any suggestions are greatly appreciated! I'm hoping to hear something and be like, "Yes! That's it! She has a name!" Please help!