Well, I’m obviously biased toward [name_f]Leah[/name_f] 
But since that’s off the table, maybe they would like:
[name_f]Alma[/name_f]
[name_f]Eva[/name_f] (maybe off the table if [name_f]Eve[/name_f] is, though)
[name_f]Fern[/name_f]
[name_f]Lena[/name_f]
[name_f]Frida[/name_f]
[name_f]Eden[/name_f]
[name_f]Esther[/name_f]
[name_f]Alice[/name_f]
[name_f]Olive[/name_f]
[name_f]Liora[/name_f] / [name_f]Leora[/name_f]
[name_f]Leona[/name_f]
[name_f]Nora[/name_f]
[name_f]Miriam[/name_f]
[name_f]Pearl[/name_f]
[name_f]Opal[/name_f]
[name_f]Gilda[/name_f]
[name_f]Naomi[/name_f]
[name_f]Sloane[/name_f]
[name_f]Cleo[/name_f]
[name_f]Edna[/name_f]
[name_f]Ruby[/name_f]
[name_f]Mina[/name_f]
For these “let us name your baby” questions, I like to make my list before reading [name_f]Pam[/name_f] and Sophie’s suggestions, so that I’m not influenced by other ideas 
But I want to second the ideas of [name_f]Ida[/name_f], [name_f]Etta[/name_f], [name_f]Greta[/name_f], and [name_f]Nina[/name_f]! [name_f]Ida[/name_f] and [name_f]Etta[/name_f] were two of my first thoughts, and I also had [name_f]Greta[/name_f] and [name_f]Nina[/name_f] in my list of suggestions before reading the article.