If you are really struggling and it starts to get too close to the deadline then consider giving her a longer name with lots of different nn/diminutive choices - that way you have more time to see which of the names eventually suit her! Ideas (some of the names may be common but not all of the diminutives are):
Elizabeth (Lizzy, Libby, Beth, Eliza, Betty, Bess, Elsie, Elsa..)
Eleanor (Nell, Elle/Ellie, Ella, Nora, Leni)
Antonia (Anna/Annie, Anya, Nina, Nia, Toni)
Emilia (Emmy, Millie, Mila, Mia)
Isabella (Izzy, Belle/Bella, Elle/Ella)
Genevieve (Genny, Ginny, Neve, Eve/Evie)
Christabel (Chris/Chrissie, Christy, Kit/Kitty, Tabby, Belle/Bella)
Cordelia (Cora, Cory, Cordy, Lia, Delia)
Juliet (Jules, Jude, Letty, Etty, Jet)
Josephine (Jo/Joey, Josie, Sephie, Effie, Finn, Gigi)
Magdalena (Maggie, Maddie, Mae, Lena)