[name_f]My[/name_f] daughters name is [name_f]Sophia[/name_f] [name_f]Summer[/name_f], and if my husband and I ever have a boy it will be [name_m]Maximilian[/name_m] [name_m]Alexander[/name_m]! But if we have another girl, I’m not sure what her name would be! I love names that sound elegant and almost kind of fancy haha for example, some girls name I like are [name_f]Isla[/name_f], [name_f]Cosette[/name_f], [name_f]Jolie[/name_f], [name_f]Evangeline[/name_f], [name_f]Georgia[/name_f], etc. I like for them to sound grown up, names my kids can proudly take into adulthood. What are some good girl names to go with [name_f]Sophia[/name_f] [name_f]Summer[/name_f]? (First and middle name recommendations please!)
I really like all of the girls’ names on your list! For some other ideas, how about…
[name_f]Juliette[/name_f] [name_f]Maeve[/name_f]
[name_f]Audrey[/name_f] [name_u]Willow[/name_u]
[name_f]Emmeline[/name_f] [name_f]Pearl[/name_f]
[name_f]Colette[/name_f] [name_f]Matilda[/name_f]
[name_f]Tabitha[/name_f] [name_f]Phoebe[/name_f]
[name_f]Isabelle[/name_f] [name_f]Frances[/name_f]
[name_f]Diana[/name_f] [name_f]Penelope[/name_f]
[name_u]Ruby[/name_u] [name_f]Cecelia[/name_f]
[name_f]Eva[/name_f] [name_f]Genevieve[/name_f]
[name_f]Matilda[/name_f] [name_f]Margaret[/name_f]
[name_f]Annabel[/name_f] [name_f]Charlotte[/name_f]
[name_f]Victoria[/name_f] [name_f]Gwendolyn[/name_f]
[name_f]Emma[/name_f] [name_f]Lucille[/name_f]
[name_f]Amelia[/name_f] [name_f]Caroline[/name_f]
[name_f]Autumn[/name_f] [name_f]Olivia[/name_f]
[name_f]Genevieve[/name_f] [name_f]April[/name_f]
[name_f]Vivienne[/name_f] [name_f]Claire[/name_f] / [name_u]Vivian[/name_u] [name_f]Claire[/name_f]
[name_f]Eleanor[/name_f] [name_f]Joy[/name_f]
[name_f]Josephine[/name_f], [name_f]Cora[/name_f], [name_f]Fiona[/name_f], [name_u]Kenna[/name_u], [name_f]Aurora[/name_f], [name_f]Naomi[/name_f], [name_f]Gabrielle[/name_f], [name_f]Felicity[/name_f], [name_f]Amabella[/name_f], [name_f]Lillian[/name_f], [name_f]Dahlia[/name_f], [name_f]Delphine[/name_f], [name_f]Althea[/name_f]
With [name_f]Sophia[/name_f], I really like [name_f]Isla[/name_f], [name_f]Georgia[/name_f] and [name_f]Jolie[/name_f]!
I’ll suggest…
[name_f]Chloe[/name_f]
[name_f]Penelope[/name_f]
[name_f]Harriet[/name_f]
[name_f]Matilda[/name_f]
[name_f]Eliza[/name_f]
[name_f]Lucy[/name_f]
[name_f]Ivy[/name_f]
[name_u]Willow[/name_u]
[name_f]Rosemary[/name_f]
[name_f]Eva[/name_f]
[name_f]Clara[/name_f]
[name_u]Meredith[/name_u]
[name_u]Holly[/name_u]
[name_f]Grace[/name_f]
[name_u]Florence[/name_u]
[name_f]Isabella[/name_f]
[name_u]Vivian[/name_u]
[name_f]Beatrice[/name_f]
[name_f]Stella[/name_f]
[name_f]Anya[/name_f]
I adore [name_f]Sophia[/name_f] [name_f]Summer[/name_f]! It’s such a fun, elegant, princessy name. For a sister, I instantly thought of a combo I saw mentioned on nameberry by another user earlier today - [name_u]Aspen[/name_u] [name_f]Astoria[/name_f].
[name_m]Maximillian[/name_m] [name_m]Alexander[/name_m] is also so handsome.
I am throwing out a bunch of combinations, some using the names you mentioned. Obviously any of these combos could be broken up, I just enjoyed making lovely, rhythmic combinations like [name_f]Sophia[/name_f] [name_f]Summer[/name_f]!
[name_f]Isla[/name_f] [name_u]Emerson[/name_u] | [name_f]Isla[/name_f] [name_f]Angelique[/name_f]
[name_f]Evangeline[/name_f] [name_u]Wren[/name_u]
[name_f]Elena[/name_f] [name_f]Cosette[/name_f] | [name_f]Elodie[/name_f] [name_f]Cosette[/name_f]
[name_f]Georgia[/name_f] [name_f]Lily[/name_f]
[name_f]Amalia[/name_f] [name_f]Jolie[/name_f]
[name_f]Lila[/name_f] [name_f]Serenity[/name_f]
[name_f]Layla[/name_f] [name_u]Harmony[/name_u]
[name_f]Gemma[/name_f] [name_f]Amelie[/name_f]
[name_f]Cecily[/name_f] [name_f]Carys[/name_f]
[name_f]Ophelia[/name_f] [name_f]Bronte[/name_f]
[name_f]Sienna[/name_f] [name_u]Emery[/name_u]
[name_f]Esme[/name_f] [name_f]Marina[/name_f]
I suggest [name_f]Elmyra[/name_f] [name_u]Sunset[/name_u] or [name_f]Katrina[/name_f] [name_u]Coy[/name_u]
[name_f]Genevieve[/name_f]
[name_f]Tabitha[/name_f]
[name_f]Penelope[/name_f]
[name_f]Juliette[/name_f]
[name_f]Lillian[/name_f]
[name_f]Eleanor[/name_f]
[name_f]Victoria[/name_f] [name_u]June[/name_u]
[name_f]Olivia[/name_f] [name_u]Patrice[/name_u]
[name_f]Louisa[/name_f] [name_f]Claire[/name_f]
[name_f]Isla[/name_f] [name_f]Elaine[/name_f]
[name_f]Nora[/name_f] [name_f]Rose[/name_f]
[name_f]Viveca[/name_f] [name_u]Sage[/name_u]
[name_f]Gloria[/name_f] [name_f]Renee[/name_f]
[name_f]Ramona[/name_f] [name_f]Brianne[/name_f]
[name_f]Sophia[/name_f] [name_f]Summer[/name_f] is so sweet! And I love [name_f]Sophia[/name_f] and [name_m]Maximilian[/name_m] together; Maximilian’s such a big name but so romantic and full of rich history! 
I think [name_f]Evangeline[/name_f] or Georgia/Georgina would go fabulously with them; [name_f]Sophia[/name_f] and [name_f]Isla[/name_f] is perfect, but I don’t know that [name_f]Isla[/name_f] works quite as well if [name_m]Maximilian[/name_m] were added down the line. Other names that work well with [name_f]Sophia[/name_f] and [name_m]Maximilian[/name_m], imo:
[name_f]Sophia[/name_f] and [name_f]Amalia[/name_f]
[name_f]Sophia[/name_f] and Theodora/Thea
[name_f]Sophia[/name_f] and [name_f]Anneliese[/name_f] (love this!)
[name_f]Sophia[/name_f] and [name_f]Josephine[/name_f]
[name_f]Sophia[/name_f] and [name_f]Genevieve[/name_f]
[name_f]Sophia[/name_f] and Vera/Verity
[name_f]Sophia[/name_f] and [name_f]Natalia[/name_f]
[name_f]Sophia[/name_f] and [name_f]Marguerite[/name_f]
[name_f]Sophia[/name_f] and [name_f]Delphine[/name_f]
[name_f]Sophia[/name_f] and [name_f]Ramona[/name_f]
[name_f]Anneliese[/name_f] is my favorite, though, besides [name_f]Evangeline[/name_f] from your own favorites! I think [name_f]Anneliese[/name_f] is perfection with both [name_f]Sophia[/name_f] and [name_m]Maximilian[/name_m], and I love the nn Annie… and Elise/Liesey is also super cute! Maybe something like [name_f]Anneliese[/name_f] [name_u]Eden[/name_u] or [name_f]Anneliese[/name_f] [name_f]Vera[/name_f]?
Good luck!