Like: Heidi, Hazel, Ada, Sylvie, May, Martha, Connie, Elsie, Violet, Nia, Elowen, Athena, Nancy, Anya, Cassie, Callie
Dislike: Penelope, Maggie, Mia, Mara, Daisy, Bessie, Romilly, Saffron, Carrie
If you genuinely can't decide you could look up the popularity and just use the least popular? Or if you share your surname it might change it because some won't go as well.
You have 4 names that are 6 letters ending in ie and starting with C, so seems you really like this sound so could also narrow it down to those 4?