I’m so in love with Ava but I can’t decide on the perfect middle name. Surname is one syllable starting with W.
Ava Marlowe
Ava Otillie
Ava Adeline
Ava Autumn
Ava Clementine
Ava Katherine
Ava Ophelia
Ava Cecilia
Any other ideas along these lines would be very appreciated! Loving the idea of a middle name starting with a vowel, I think it has a great ring to it 
[name_f]Ava[/name_f] [name_f]Katherine[/name_f] is sweet! I also like [name_f]Ava[/name_f] [name_f]Josephine[/name_f].
I love [name_f]Ava[/name_f] [name_f]Clementine[/name_f], [name_f]Ava[/name_f] [name_u]Marlowe[/name_u], and [name_f]Ava[/name_f] [name_f]Cecilia[/name_f]!
More ideas…
[name_f]Ava[/name_f] [name_f]Amaria[/name_f]
[name_f]Ava[/name_f] [name_f]Delilah[/name_f]
[name_f]Ava[/name_f] [name_f]Charlotte[/name_f]
[name_f]Ava[/name_f] [name_f]Emmeline[/name_f]
[name_f]Ava[/name_f] [name_f]Emilia[/name_f]
[name_f]Ava[/name_f] [name_f]Soraya[/name_f]
[name_f]Ava[/name_f] [name_f]Sophia[/name_f]
[name_f]Ava[/name_f] [name_f]Elisabeth[/name_f] / [name_f]Ava[/name_f] [name_f]Elizabeth[/name_f]
[name_f]Ava[/name_f] [name_f]Opaline[/name_f]
[name_f]Ava[/name_f] [name_f]Ione[/name_f]
[name_f]Ava[/name_f] [name_f]Penelope[/name_f]
[name_f]Ava[/name_f] [name_f]Verna[/name_f] or [name_f]Ava[/name_f] [name_f]Odessa[/name_f]
i love [name_f]Ava[/name_f] [name_f]Katherine[/name_f], [name_f]Ava[/name_f] [name_f]Clementine[/name_f], and [name_f]Ava[/name_f] [name_u]Marlowe[/name_u]! as you resident [name_f]Ava[/name_f], my middle name is [name_f]Nicole[/name_f] <3
[name_f]Ava[/name_f] [name_f]Katherine[/name_f]!
[name_f]Ava[/name_f] [name_f]Ottilie[/name_f] is adorable!
[name_f]Ava[/name_f] [name_f]Clementine[/name_f] is gorgeous!! [name_f]Ava[/name_f] [name_f]Ottilie[/name_f] is beautiful too.
[name_f]Ava[/name_f] [name_f]Elodie[/name_f]
[name_f]Ava[/name_f] [name_f]Elowen[/name_f]
[name_f]Ava[/name_f] [name_f]Evangeline[/name_f]
[name_f]Ava[/name_f] [name_f]Emilia[/name_f]
[name_f]Ava[/name_f] [name_f]Seraphine[/name_f]
[name_f]Ava[/name_f] [name_u]Juniper[/name_u]
[name_f]Ava[/name_f] [name_f]Aurelia[/name_f]
[name_f]Ava[/name_f] [name_f]Luella[/name_f]
[name_f]Ava[/name_f] [name_f]Mirabel[/name_f]
[name_f]Ava[/name_f] [name_f]Alessia[/name_f]
[name_f]Ava[/name_f] [name_f]Ilaria[/name_f]
[name_f]Ava[/name_f] [name_f]Amelie[/name_f]
[name_f]Ava[/name_f] [name_u]Marlowe[/name_u] really stands out to me from your list- it’s very soft and sweet.
[name_f]Ava[/name_f] [name_f]Vivienne[/name_f]
[name_f]Ava[/name_f] [name_f]Rosemary[/name_f]
[name_f]Ava[/name_f] [name_f]Lillian[/name_f]
[name_f]Ava[/name_f] [name_f]Elowen[/name_f]
[name_f]Ava[/name_f] [name_f]Elsinore[/name_f]
[name_f]Ava[/name_f] [name_f]Delphine[/name_f]
[name_f]Ava[/name_f] [name_f]Seraphine[/name_f]
[name_f]Ava[/name_f] [name_f]Daphne[/name_f]
[name_f]Ava[/name_f] [name_f]Verity[/name_f]
[name_f]Ava[/name_f] [name_f]Juliet[/name_f]
[name_f]Ava[/name_f] [name_f]Cecilia[/name_f] is breathtaking 
I also love [name_f]Ava[/name_f] Clementine!!
Some more ideas:
[name_f]Ava[/name_f] [name_f]Elodie[/name_f]
[name_f]Ava[/name_f] [name_f]Callista[/name_f]
[name_f]Ava[/name_f] [name_f]Calliope[/name_f]
[name_f]Ava[/name_f] [name_f]Helena[/name_f]
[name_f]Ava[/name_f] [name_f]Madeleine[/name_f]
[name_f]Ava[/name_f] [name_f]Fiona[/name_f]
[name_f]Ava[/name_f] [name_f]Blythe[/name_f]
[name_f]Ava[/name_f] [name_f]Lorelei[/name_f]
[name_f]Ava[/name_f] Beatrice/Beatrix
[name_f]Ava[/name_f] [name_f]Winifred[/name_f]
[name_f]Ava[/name_f] [name_f]Perpetua[/name_f]
[name_f]Ava[/name_f] [name_f]Kerensa[/name_f]
[name_f]Ava[/name_f] [name_f]Isadora[/name_f]
[name_f]Ava[/name_f] [name_f]Theodora[/name_f]
[name_f]Ava[/name_f] [name_f]Amity[/name_f]
[name_f]Ava[/name_f] [name_u]Peregrine[/name_u]
[name_f]Ava[/name_f] [name_f]Winslet[/name_f]
[name_f]Ava[/name_f] [name_f]Amelie[/name_f]
[name_f]Ava[/name_f] [name_f]Cecily[/name_f]
[name_f]Ava[/name_f] Mirabel/Mirabelle
[name_f]Ava[/name_f] [name_f]Coralie[/name_f]
[name_f]Ava[/name_f] [name_f]Quintessa[/name_f]
[name_f]Ava[/name_f] Seraphine/Seraphina
[name_f]Ava[/name_f] [name_u]Promise[/name_u]
[name_f]Ava[/name_f] [name_f]Zinnia[/name_f]
[name_f]Ava[/name_f] [name_f]Marigold[/name_f]
[name_f]Ava[/name_f] [name_u]Juniper[/name_u]
[name_f]Ava[/name_f] [name_f]Pearl[/name_f]
[name_f]Ava[/name_f] [name_f]Guinevere[/name_f]
[name_f]Ava[/name_f] [name_f]Genevieve[/name_f]
[name_f]Ava[/name_f] [name_f]Dorothy[/name_f]
[name_f]Ava[/name_f] [name_f]Juno[/name_f]
[name_f]Ava[/name_f] [name_f]Serenity[/name_f]
[name_f]Ava[/name_f] [name_f]Karina[/name_f]
[name_f]Ava[/name_f] [name_f]Blossom[/name_f]
[name_f]Ava[/name_f] [name_f]Olympia[/name_f]
[name_f]Ava[/name_f] [name_f]Oceana[/name_f]
[name_f]Ava[/name_f] [name_f]Emerald[/name_f]
[name_f]Ava[/name_f] [name_f]Rosalind[/name_f]
[name_f]Ava[/name_f] [name_f]Tess[/name_f]
[name_f]Ava[/name_f] [name_f]Rosaline[/name_f]
[name_f]Ava[/name_f] Rosabel/Rosabelle
[name_f]Ava[/name_f] [name_f]Lilac[/name_f]
[name_f]Ava[/name_f] [name_f]Amaryllis[/name_f]
[name_f]Ava[/name_f] [name_u]Indigo[/name_u]
[name_f]Ava[/name_f] Lenore/Lenora/Leonor/Leonora
[name_f]Ava[/name_f] [name_f]Eleanor[/name_f]
[name_f]Ava[/name_f] [name_f]Emmeline[/name_f]
[name_f]Ava[/name_f] [name_f]Elowen[/name_f]
ava anamaria
ava elsie
ava genevieve
ava cathleen
ava juliet
ava adeline
ava elina
ava delila
[name_f]Ava[/name_f] [name_f]Clementine[/name_f] and [name_f]Ava[/name_f] [name_f]Ottilie[/name_f] are super sweet!
What about:
[name_f]Ava[/name_f] [name_f]Eloise[/name_f]
[name_f]Ava[/name_f] [name_f]Rosalie[/name_f]
[name_f]Ava[/name_f] [name_f]Josephine[/name_f]
[name_f]Ava[/name_f] [name_f]Emmeline[/name_f]
[name_f]Ava[/name_f] [name_f]Cordelia[/name_f]
[name_f]Ava[/name_f] [name_u]Briar[/name_u]
[name_f]Ava[/name_f] [name_f]Matilda[/name_f]
[name_f]Ava[/name_f] [name_f]Eleanor[/name_f]
[name_f]Ava[/name_f] [name_u]Willow[/name_u]
[name_m]Hi[/name_m] there.
I’m loving [name_f]Ava[/name_f] lately too. It’s so glamorous & sweet w/just the right amount of spunk.
Here are my thoughts on what you’ve got so far:
[name_f]Ava[/name_f] Marlowe-The flow is good. I’m just not into [name_u]Marlowe[/name_u]. I guess it sounds too modern or something.
[name_f]Ava[/name_f] Otillie-Or [name_f]Ottilie[/name_f]? Not sure which one is right. Anyway, it’s unique & pleasant & flows well w/Ava.
[name_f]Ava[/name_f] Adeline-I love [name_f]Adeline[/name_f]. I don’t mind the alliteration here.
[name_f]Ava[/name_f] Autumn-That’s kind of nice too. Very calming.
[name_f]Ava[/name_f] Clementine-Love love [name_f]Clementine[/name_f]. This is unexpected & flows well. Makes [name_f]Ava[/name_f] feels a bit sassier.
[name_f]Ava[/name_f] Katherine-That’s a solid classic. Sounds nice. Not terribly exciting.
[name_f]Ava[/name_f] Ophelia-I’m just not into [name_f]Ophelia[/name_f]. Not sure why. I think it’s too dramatic sounding.
[name_f]Ava[/name_f] Cecilia-That’s nice. It doesn’t sparkle, but sounds good.
Sorry for any repeats, but how about…
[name_f]Ava[/name_f] [name_f]Cecily[/name_f]
[name_f]Ava[/name_f] [name_f]Coraline[/name_f]
[name_f]Ava[/name_f] [name_f]Cornelia[/name_f]
[name_f]Ava[/name_f] [name_f]Eloise[/name_f]
[name_f]Ava[/name_f] [name_f]Estella[/name_f]
[name_f]Ava[/name_f] [name_u]Indigo[/name_u]
[name_f]Ava[/name_f] Josephine-love this one!
[name_f]Ava[/name_f] [name_f]Juliet[/name_f]
[name_f]Ava[/name_f] [name_f]Pearl[/name_f]
[name_f]Hope[/name_f] this helps. 
I like [name_f]Ava[/name_f] [name_f]Ophelia[/name_f],
maybe:
[name_f]Ava[/name_f] [name_f]Pauline[/name_f]
[name_f]Ava[/name_f] [name_f]Jane[/name_f]
[name_f]Ava[/name_f] [name_f]Mae[/name_f]
[name_f]Ava[/name_f] [name_f]Lucille[/name_f]
[name_f]Ava[/name_f] [name_f]Adeline[/name_f] or [name_f]Ava[/name_f] [name_f]Clementine[/name_f] are both beautiful!
Some other ideas…
[name_f]Ava[/name_f] [name_f]Alora[/name_f]
[name_f]Ava[/name_f] [name_f]Annelise[/name_f]
[name_f]Ava[/name_f] [name_f]Eliza[/name_f]
[name_f]Ava[/name_f] [name_u]Emerson[/name_u]
[name_f]Ava[/name_f] [name_f]Ivy[/name_f]
[name_f]Ava[/name_f] [name_f]Olivia[/name_f]
[name_f]Ava[/name_f] [name_f]Emmeline[/name_f]
[name_f]Ava[/name_f] [name_u]Ainsley[/name_u]
[name_f]Ava[/name_f] [name_f]Alouette[/name_f]