I think [name]Sage[/name] (no ‘i’) would age fine. I also like the idea of using [name]Paige[/name] as a mn. Suggestions:
First Names:
[name]Sela[/name]/h
[name]Salome[/name]
[name]Shelby[/name]
[name]Senna[/name]
[name]Simone[/name]
[name]Sylvie[/name]
[name]Sylvia[/name] (I like this one with [name]Hannah[/name])
[name]Sienna[/name]
[name]Sierra[/name]
[name]Sherrie[/name]
Sistene
[name]Soraya[/name]
[name]Stella[/name]
[name]Sadie[/name]
[name]Sarai[/name]
[name]Sarah[/name]
Middle Names:
[name]Genevra[/name]
[name]Genoa[/name]
[name]Gianna[/name]
[name]Gemma[/name]
[name]Gina[/name]
[name]Giovanna[/name]
[name]Gia[/name]
[name]Giada[/name]
[name]Gretchen[/name]
[name]Gwen[/name]
[name]Gwyneth[/name]
[name]Gwendolyn[/name]
Combos:
Sistene [name]Gianna[/name]
[name]Soraya[/name] [name]Gwyneth[/name]
[name]Sadie[/name] [name]Genevra[/name]
[name]Salome[/name] [name]Genoa[/name]
[name]Shelby[/name] [name]Gwen[/name]
[name]Sylvie[/name] [name]Giovanna[/name]
[name]Sienna[/name] [name]Gwendolyn[/name]
With mn [name]Paige[/name]:
[name]Sela[/name] [name]Paige[/name]
[name]Senna[/name] [name]Paige[/name]
[name]Sylvie[/name] [name]Paige[/name]
[name]Sierra[/name] [name]Paige[/name]
[name]Soraya[/name] [name]Paige[/name]