I have 2 girls already, and their names are [name_u]Skye[/name_u] [name_u]Sage[/name_u], and [name_f]Lavinia[/name_f] [name_f]Bellerose[/name_f]. My husband and I are having a hard time with a third girl’s name that goes well with those two.
[name_m]Both[/name_m] of those names are very feminine so I think there are LOTS of great options!
Here are a few up and comers I could see working:
[name_f]Clementine[/name_f]
[name_f]Freya[/name_f]
[name_f]Marisol[/name_f]
[name_f]Maisie[/name_f]
[name_f]Indigo[/name_f]
[name_f]Bronwen[/name_f]
[name_f]Juliet[/name_f]
My personal favourite: [name_u]Vesper[/name_u]
Try those on for size!
Thank you! Those are great names 
[name_u]Juniper[/name_u] came to mind! It goes well with your other girls and it has the adorable nn [name_f]Juni[/name_f].
I think [name_f]Aurora[/name_f] goes so great with your other two, it is very feminine and also nature-y. (And, [name_u]Rory[/name_u] is a really great nickname!)
[name_f]Xanthe[/name_f]
[name_u]Juniper[/name_u]
[name_f]Estella[/name_f]
[name_f]Elsie[/name_f]
Thank you gals for the great name choices We have decided on a name!
[name_u]Skye[/name_u] and: [name_u]Quinn[/name_u], [name_u]Reese[/name_u], [name_u]Shea[/name_u]
[name_f]Lavinia[/name_f] and: [name_f]Beatriz[/name_f], [name_f]Priscilla[/name_f], [name_f]Sylvia[/name_f]