[name_u]Rowan[/name_u] and [name_u]Sawyer[/name_u]. I prefer them both on boys, but I think they work on girls too.
I’m a huge fan of slightly feminine sounding unisex names so this may be a long list:
[name_u]Ariel[/name_u]
[name_m]Arrow[/name_m]
[name_u]Avery[/name_u]
[name_u]Bay[/name_u]
[name_u]Blair[/name_u]
[name_f]Briar[/name_f]
[name_u]Cade[/name_u]
[name_u]Echo[/name_u]
[name_u]Finn[/name_u]
[name_m]Fox[/name_m]
[name_u]Indigo[/name_u]
[name_f]Jade[/name_f]
[name_m]Luka[/name_m]
[name_u]Piper[/name_u]
[name_m]Reef[/name_m]
[name_u]Remi[/name_u]
[name_u]River[/name_u]
[name_u]Sage[/name_u]
[name_f]Sparrow[/name_f]
[name_u]Story[/name_u]
[name_u]Winter[/name_u]
[name_u]Wren[/name_u]
Probably [name_u]Rowan[/name_u], [name_u]River[/name_u], or [name_u]Avery[/name_u].
[name_u]Finley[/name_u] and [name_u]Addison[/name_u] are my favorites for girls.
[name_u]Noah[/name_u], though for a girl I would probably spell it [name_f]Noa[/name_f] to make it more feminine (I suppose for some that might defeat the point of a unisex name).