I really like [name_u]Vivian[/name_u] from your list.
Some ideas of mine:
[name_f]Nadia[/name_f] [name_f]Elise[/name_f]
[name_f]Rosalie[/name_f] [name_f]Elise[/name_f]
[name_f]Gwendolyn[/name_f] [name_f]Elise[/name_f]
[name_f]Wren[/name_f] [name_f]Elise[/name_f]