Baby sister to Ryder & Archer💗

We are expecting our third baby in [name_f]April[/name_f] and recently found out she is a girl! We are beyond thrilled but cannot seem to find any names that feel right. Our boys are [name_m]Ryder[/name_m] [name_u]Beau/name_u and [name_m]Archer[/name_m] [name_u]Finn/name_u. An -er ending is not necessary for the first name, but I would like to have one of the names ending in -er(I think).
I loved [name_u]Harper[/name_u] but it’s a bit too popular now. [name_u]Piper[/name_u] is cute but hubby is unsure of it.
Suggestions on names that flow well with our boys names? Thanks!

[name_m]Ryder[/name_m] [name_u]Beau[/name_u], [name_m]Archer[/name_m] [name_u]Finn[/name_u] and…

[name_u]Ember[/name_u]
[name_f]Esther[/name_f]
[name_u]Jagger[/name_u]
[name_f]October[/name_f]
[name_u]Parker[/name_u]
[name_u]Pepper[/name_u]
[name_u]River[/name_u]
[name_u]Sawyer[/name_u]
[name_u]Skyler[/name_u]
[name_u]Vesper[/name_u]
[name_u]Winter[/name_u]

Some of the -er ending names I had in my list hope this helps.

Adding to the list above:

[name_u]Fifer[/name_u]
[name_u]Sailor[/name_u]/[name_u]Saylor[/name_u]
[name_f]Eleanor[/name_f]
[name_u]Juniper[/name_u]
[name_u]Blair[/name_u]
[name_f]Clover[/name_f]

I’m not sure that you want to hem yourself in with an er ending? I would suggest finding a name you love and not limiting yourself to that criteria (although it may end up that your favourite name does end in er). I think of [name_m]Ryder[/name_m] and [name_m]Archer[/name_m] as strong, modern names so I’ll list some that I think of as modern but feminine enough that it is known that you have two boys and a girl. I love [name_u]Piper[/name_u] from your list! [name_m]Ryder[/name_m], [name_m]Archer[/name_m], and…

[name_u]Brinley[/name_u]
[name_u]Bryley[/name_u]
[name_f]Carys[/name_f]/[name_f]Cerys[/name_f]
[name_f]Lulu[/name_f]
[name_u]Juniper[/name_u]/[name_f]Junie[/name_f]/[name_u]June[/name_u]
[name_f]Poppy[/name_f]
[name_u]Wren[/name_u]
[name_f]Ziva[/name_f]
[name_f]Brielle[/name_f]