I know someone that called their daughter Zoe when she was born, then changed it just before they went to register her. I honestly think that they went through a whole baby name book, got through to Z, then didn't find something they "loved", and just got stuck at Z.
There was a name that they loved, but her best friend had a daughter of the same name, so she didn't feel that she could use it. She spoke to the best friend who said "don't be daft - if you love it, use it!", so she did!
I also know of someone that called their son Zinzan. Maybe they had the same dilemma as my other friend!
@Demainsdeslaube I see you've agreed that you might need to start again. I think of names considering the child at all ages - toddler, teenager, adult. That's where Helen falls down with me. I just can't picture a toddler Helen.
I do like some of the classic names that were previously seen as old fashioned. Ava (I know this has been done to death in recent years), Ada, Emily, Maude, Agatha, Amelia, Aurelia.
I have a friend who called their daughter Adeline, or Addie for short, which I think is lovely.
Good luck finding something you both love!