Hey,
We have a little boy called Sonny and we’re unsure of what to call our little girl who is due soon. We’re not keen on traditional names but love nature inspired names & neutral names and obviously it needs to compliment Sonny. Currently on our list;
Mila
Summer
Wren
Effie
Blake
Blossom
Naia
Frankie
Any suggestions welcome 
Your list is gorgeous. I don’t think I could have a [name_u]Sonny[/name_u] and a [name_f]Summer[/name_f], but I love both names individually. Everything else sounds great though. Some ideas you may like ~
[name_f]Esme[/name_f]
[name_f]Tess[/name_f]
[name_u]Eden[/name_u]
[name_f]Elin[/name_f]
[name_f]Elidi[/name_f]
[name_f]Elida[/name_f]
[name_f]Bloom[/name_f]
[name_f]Jasmine[/name_f]
[name_f]Posie[/name_f]
[name_f]Petal[/name_f]
Celendine (nn Cece?)
[name_f]Stella[/name_f]
[name_u]Eren[/name_u] got autocorrected to [name_u]Eden[/name_u], but that’s a good call too!
From your list, I like [name_u]Blake[/name_u] and [name_u]Wren[/name_u] best with [name_u]Sonny[/name_u]. Maybe you’d also like:
Anna/Annie
[name_u]Blair[/name_u]
[name_f]Bonnie[/name_f]
[name_u]Briar[/name_u]
[name_u]Haven[/name_u]
[name_f]Maren[/name_f]
[name_f]Margot[/name_f]
[name_f]Phoebe[/name_f]
[name_u]Shiloh[/name_u]
[name_f]Thea[/name_f]
[name_f]Willa[/name_f]
[name_u]Zoe[/name_u]
I’m really loving [name_f]Blossom[/name_f] as Sonny’s sister!! I have to agree that [name_u]Sonny[/name_u] & [name_f]Summer[/name_f] are too close for siblings
[name_f]Pixie[/name_f]
[name_u]Echo[/name_u]
[name_u]Aster[/name_u]
[name_f]Della[/name_f]
[name_u]Prairie[/name_u]
[name_f]Maple[/name_f]
[name_f]Cassia[/name_f]
[name_f]Demi[/name_f]
[name_u]Haven[/name_u]
[name_u]Lark[/name_u]
[name_u]Dove[/name_u]
[name_u]Beck[/name_u]
[name_f]Cherry[/name_f]
[name_u]Holly[/name_u]
[name_f]Lorelei[/name_f]
[name_f]Sienna[/name_f]
[name_f]Hallie[/name_f]
I love [name_u]Frankie[/name_u], [name_f]Naia[/name_f], [name_f]Effie[/name_f] and [name_u]Wren[/name_u]
[name_u]Sonny[/name_u] and…
[name_f]Lula[/name_f]
[name_f]Maeve[/name_f]
[name_f]Margo[/name_f]
[name_f]Meadow[/name_f]
[name_f]Nixie[/name_f]
[name_f]Opal[/name_f]
[name_f]Joy[/name_f]
[name_u]Juniper[/name_u]
[name_u]Winslow[/name_u]
[name_f]Ismay[/name_f]
[name_f]Trixie[/name_f]
[name_f]Flora[/name_f] came to mind immediately! I especially love [name_f]Blossom[/name_f] from your list as well, although they are all great options.
I must admit I feel the same about [name_f]Summer[/name_f], my husband likes it a lot 
but I was leaning towards the other names. [name_u]Love[/name_u] some of your suggestions, I’m going to go through them later and write them down, it always feels easier to see them written for some reason!!
Names to go with Sonny I believe are: Sage
Winter
Luna
Lalana
Caro
Melody
Harmony
Phoebe
Chloe
Apple
Acacia
Acasia
Esmee
Lillie
Autumn
Moon
Serena
Sienna
Stella
Bloom
Blossom
[name_u]Sonny[/name_u] is cute!
From your list I really like [name_f]Effie[/name_f] & [name_f]Blossom[/name_f] for [name_u]Sonny[/name_u] sister 
[name_f]Effie[/name_f] is fun vintage name that like [name_u]Sonny[/name_u] has a naturally happy disposition. [name_f]Effie[/name_f] is a family name for me (Euphemia known as Effie) so this makes [name_f]Effie[/name_f] even more appealing. Anyways [name_u]Sonny[/name_u] & [name_f]Effie[/name_f] are lovely 
[name_f]Blossom[/name_f] is such a fun word name really light and full of spring like energy! [name_f]Blossom[/name_f] would be perfect with [name_u]Sonny[/name_u] such a happy sibling set 
Some other ideas (count any repeats as me being in agreement with the berries)
[name_f]Bloom[/name_f]
[name_f]Delphi[/name_f]
[name_f]Goldie[/name_f]
[name_u]Indigo[/name_u]
[name_f]Violet[/name_f]
[name_u]Story[/name_u]
[name_f]Esme[/name_f]
[name_f]Rosalie[/name_f]
[name_f]Poetry[/name_f]
[name_u]Sailor[/name_u]
[name_u]Willow[/name_u]
[name_f]Hope[/name_f] this helped
i really like [name_u]Wren[/name_u] and [name_f]Naia[/name_f] from your list! [name_u]Sonny[/name_u] & [name_u]Wren[/name_u] sound excellent together.
can i suggest some more cool naturey names:
[name_f]Zadie[/name_f]
[name_u]Sage[/name_u]
[name_u]Ever[/name_u]
[name_f]Cyra[/name_f]
[name_u]Dove[/name_u]
[name_u]Liberty[/name_u]
[name_u]Fern[/name_u]
[name_f]Althea[/name_f]
[name_u]Arrow[/name_u]
Wren and Frankie are both perfection with Sonny! Naia is also lovely and has a similar vibe to Sonny. Other ideas:
Billie
Luella
Kaia
Primrose
Lux
Astrid
Nico
Marigold
Della
Fern
Juniper
Noa
Olive
Liv
Saskia
Flora
Clover
Rue
Indigo
Lyra
Matilda
Gia
August
Leni
Stella
Iluka
Thea
Posey
Marlowe
Edie
Freya
Araminta
Bowie
Juno
Uma
Dahlia
Iris
Ruby
Etta
Amelie
Jedda
Kit
Lennon
Orla
Willa
Hadley
Allegra
Scout
Zella
Rio
Thank you all! We had almost taken [name_f]Blossom[/name_f] & [name_u]Frankie[/name_u] off the list so this has really made us think! We really love [name_u]Wren[/name_u] but find it quite hard to pair a middle name with it, its a tricky name but so pretty! 
I also love [name_f]Willa[/name_f], but my husband isn’t keen and [name_u]Willow[/name_u] is very popular where we live which is quite similar x
I love [name_f]Summer[/name_f] and [name_u]Frankie[/name_u] but your entire list is nice.
Suggestions
[name_f]Delilah[/name_f]
[name_f]Naomi[/name_f]
[name_f]Giselle[/name_f]
[name_f]Daisy[/name_f]
[name_u]Jade[/name_u]
[name_f]Lucia[/name_f]
[name_f]Jasmine[/name_f]
[name_f]Samantha[/name_f]
[name_f]Athena[/name_f]
[name_f]Luna[/name_f]
[name_u]Skye[/name_u]
[name_u]Skyler[/name_u]
[name_f]Kyla[/name_f]
[name_u]Winter[/name_u]
[name_f]Adelaide[/name_f]
[name_u]Liberty[/name_u]
[name_u]Sloane[/name_u]
[name_f]Cora[/name_f]
[name_f]Georgia[/name_f]
[name_u]Piper[/name_u]
[name_u]Eden[/name_u]
[name_f]Felicity[/name_f]
[name_u]Rowan[/name_u]
[name_u]Lennon[/name_u]
[name_u]Blakely[/name_u]
[name_f]Gemma[/name_f]
[name_f]Daphne[/name_f]
[name_f]Kaia[/name_f]
[name_f]Dahlia[/name_f]
[name_f]Juliet[/name_f]
[name_f]Pearl[/name_f]
[name_f]Ophelia[/name_f]
[name_f]Sylvie[/name_f]
[name_f]Mira[/name_f]
[name_f]Elodie[/name_f]
[name_f]Olive[/name_f]
[name_f]Faye[/name_f]
[name_f]Viola[/name_f]
[name_u]Teagan[/name_u]
[name_f]Meadow[/name_f]
[name_f]Brielle[/name_f]
[name_f]Esme[/name_f]
[name_f]Adele[/name_f]
[name_f]Phoebe[/name_f]
[name_f]Sienna[/name_f]
[name_f]Nina[/name_f]
[name_u]Arden[/name_u]
[name_f]Birdie[/name_f]
[name_u]Emery[/name_u]
[name_u]Finley[/name_u]
[name_u]Greer[/name_u]
[name_u]Harlow[/name_u]
[name_u]Indie[/name_u]
[name_f]Ivy[/name_f]
[name_u]Lennox[/name_u]
[name_f]Lola[/name_f]
[name_u]Monroe[/name_u]
[name_u]Peyton[/name_u]
[name_f]Poppy[/name_f]
[name_u]Quinn[/name_u]
[name_u]Rain[/name_u]
[name_u]River[/name_u]
[name_u]Sawyer[/name_u]
[name_u]Sparrow[/name_u]