[name_m]Hi[/name_m] there.
Your boys’ names are fresh & modern. Here are my thoughts for a sister-
[name_u]Holland[/name_u]-I like [name_u]Holly[/name_u] & [name_u]Halle[/name_u] a lot w/your crew. They’re beautiful names on their own. [name_u]Holland[/name_u] seems a little too modern for my tastes. Kind of doesn’t have that feminine of a sound in my opinion. [name_m]Just[/name_m] a tad trendy.
[name_f]Summer[/name_f]-Ooh, pretty. I like this. It’s simple, peaceful, feminine yet not frilly & slightly unexpected.
[name_f]Petra[/name_f]-This is different. I don’t dislike it. Not my personal favorite.
[name_f]Gabrielle[/name_f]/a-This is okay. A little way over done in the past 20 years. [name_m]Just[/name_m] not super exciting, & [name_u]Gaby[/name_u] just sounds a little too sassy for me.
[name_f]Karolina[/name_f]-This isn’t my favorite, but it’s okay. I’d do [name_f]Carolina[/name_f]. That looks softer.
[name_u]Ridley[/name_u]-Nah. Too boyish.
[name_f]Coraline[/name_f] nn [name_f]Coral[/name_f]-Cute! Fun & different. And beautiful w/awesome nature imagery.
[name_f]Bridget[/name_f]-An underused gem in my opinion. It has such a smart friendly feeling. And the nn [name_f]Bridie[/name_f] is adorable. It’s great w/your boys’ names too.
[name_f]Ingrid[/name_f]-I can’t get into this one, but it’s okay. Different. [name_m]Just[/name_m] not that pretty to me.
[name_f]Cordelia[/name_f] nn [name_f]Lia[/name_f]-That’s lovely. Kind o unique. [name_f]Fancy[/name_f] & vintage, but the nn [name_f]Lia[/name_f] makes it a little more approachable. I think that you could also do [name_f]Coral[/name_f] here. Or [name_f]Cora[/name_f] or [name_f]Delia[/name_f].
[name_f]Maeve[/name_f]-Yes! So sleek, elegant, simple, feminine & a little sporty.
[name_f]Britta[/name_f]-I’m not loving this one. [name_m]Just[/name_m] sounds kind of trendy & unsubstantial.
[name_u]Larkin[/name_u]-I don’t know. It has kind of a harsh sound to my ears.
[name_f]Brigid[/name_f]-I want to like this, but can’t figure out how to say it. Assuming you’re in the U.S., I think that [name_f]Bridget[/name_f] may be a safer bet.
You were thinking [name_f]Mary[/name_f] as a fn? That’s lovely & works well. I like [name_f]Mary[/name_f] [name_f]Bridget[/name_f] or [name_f]Mary[/name_f] [name_f]Cordelia[/name_f] best.
A few more fn suggestions that you may like-
[name_f]Audrey[/name_f]
[name_f]Amelie[/name_f]
[name_f]Cleo[/name_f]
[name_f]Caroline[/name_f]
[name_f]Clover[/name_f]
[name_f]Chloe[/name_f]
[name_f]Daphne[/name_f]
[name_f]Esme[/name_f]
[name_u]Eliya[/name_u]
[name_f]Greta[/name_f]
[name_u]Juniper[/name_u]/Juno
[name_u]Kit[/name_u]-maybe as a nn for [name_f]Katia[/name_f], [name_f]Kathleen[/name_f] or [name_f]Katherine[/name_f]. I just love [name_u]Kit[/name_u] w/your crew!
[name_f]Lucy[/name_f]
[name_f]Laurel[/name_f]
[name_f]Lorelei[/name_f] nn [name_f]Lora[/name_f] or [name_f]Lola[/name_f]
[name_f]Lola[/name_f]
[name_f]Maple[/name_f]
[name_f]Mabel[/name_f]
[name_f]Olive[/name_f]/Livy
[name_f]Phoebe[/name_f]
[name_f]Penelope[/name_f]/Penny/Polly/Poppy/Nellie
[name_f]Stella[/name_f]
[name_f]Soleil[/name_f]
[name_u]Sloane[/name_u]
[name_f]Tess/name_f
[name_u]Vida[/name_u]
[name_u]Wynn[/name_u]/Wynnie
[name_f]Hope[/name_f] this helps.