Does [name_f]Davina[/name_f] work for [name_m]David[/name_m]? [name_f]Davida[/name_f] is more obviously related to [name_m]David[/name_m], but [name_f]Davina[/name_f] feels so much more its own name?
I also love [name_f]Charlotte[/name_f] that you mentioned!
A few other ideas (I’ll let you decide if they count!):
[name_f]Felicity[/name_f] (Felix)
[name_f]Nechama[/name_f] (the Hebrew feminine form of Nehemiah!)
[name_f]Antonella[/name_f] (Antony)
[name_f]Giuseppina[/name_f] (I guess [name_f]Josephine[/name_f] is kinda obvious but [name_f]Giuseppina[/name_f] feels less so?)
I’m really struggling to think of any others though lol. Good luck!