Aeva

Aria is a multi-cultural name with two extremely popular versions: this more word-like one along with Arya, the spelling used for the feisty young heroine of Game of Thrones. There were about 6400 baby girls named Aria in the US last year alog with 2400 named Arya, which counted together places the name in the Top 10.
 
The light and airy Aria entered the list in 2000 and now ranks among the Top 25 girl names in the US. In Italian, Aria's literal meaning is air, while in Hebrew it's a form of Ari meaning lion. An Aria is a musical term denoting a kind of song or melody, often in an opera.
Aria is a Top 100 name throughout the English-speaking world and also ranks highly in France and several European countries -- though notably not in Italy or Israel. In Persian, Aria is a male name, and in Indian it is considered unisex. 
Aria is also an improbably cool saint's name. Saint Aria (or Arria) of Rome was an early Christian martyr.

Aria

Averly

BRAVELY

Eden is an attractive, serene name with obvious intimations of Paradise, one of several place names drawn from the Bible by the Puritans in the seventeenth century.
 Eden entered the Top 1000 in 1989, and got a real bump in visibility when Desperate Housewives' Marcia Cross used it for one of her twin girls. There have been also Edens on the old soap opera Santa Barbara and the shows Heroes and Extras.
 Pronounced ED-en, Eden is also a Hebrew name for boys, though as EE-den it's gaining ground in the US for boys, now given to one boy for every four girls.

Eden

ELyRA

EMMIKA

Otherworldly. The word -- which connote a spirit-like lightness and perfection -- originally referred to objects that were literally from the "ether," the uppermost region of space. The modern, metaphoric meaning came later.

Ethereal

EVERLEY

Elysian

Emsley/ Emslie

Ennea

Evelette

Greylie/graylee

Indie is an independent-sounding nickname name that is in the Top 100 in Wales.  As a diminutive, it's growing in popularity -- along with indie films, indie publishing -- and the reason some parents are choosing names like India and Indigo.  The Indie version seems more feminine, while Indy as in Indiana Jones tends toward the boyish.

Indie

Kalea is a Top 100 name for girls in Hawaii. Sources differ on the meaning of the name, but the most authoritative land on joy or happiness...though kalea is also the Hawaiian word for orgasm.

Kalea

A unique combination of a surname feel and dainty femininity. It's currently associated with actress Lacey Chambert.

Lacey

Okay, this is going to be confusing... 

There is a female figure in the Old Testament named Noa or Noah, whose name derives from the Hebrew No'ah, meaning "motion". The popular Biblical male name Noah (sometimes spelled as the streamlined Noa) is derived from a different Hebrew name: Noach, which means "rest, repose" – although confusingly they are often written the same in English. 

 Noa is the modern Hebrew spelling of the female name, and is very popular for girls in Israel, as well as in several European countries, including Spain, Portugal, and the Netherlands. But Noah is an established variant spelling, popularized by Noah Cyrus.

 So is a girl called Noah named after a female Biblical figure (whose name means "motion") or a male one (meaning "rest")? That's up to you! The ideal of gender neutrality means nothing belongs exclusively to one sex or the other, and that includes the spellings of Noa/Noah.

Noah

Nora is a lovely, refined name that conjures up images of Belle Epoch ladies in fur-trimmed coats skating in Central Park. Long seen as a quintessentially Irish name though its roots are not in Ireland, Nora is a quietly stylish favorite that's tiptoed to the top of the popularity ladder.
 
Nora has two separate origin stories, as a derivative of both Honora and Eleanor. The Irish and Anglo-Norman version derives from Honora, based on the Latin word honor. The Hungarians spawned Nora as a short form of Eleonora, a variation of Eleanor.
 One of Nora's most prominent contemporary namesakes is the late witty writer Nora Ephron. Other notable Noras are the independent Ibsen heroine of A Doll's House, and the female half of the witty Nick and Nora Charles duo, adding up to a most desirable choice. 
 It can also be spelled Norah, as in Norah Jones.

Nora

Novalie

This name of an ancient Egyptian princess could make a fitting choice for a bicoastal child. After an anomalous appearance at Number 855 in 1941, Nyla remained off the popularity charts until 2001, where it has remained ever since. Famous bearers of the name include Indian actress Nyla Usha and New Zealand long-distance runner Nyla Carroll.

Nyla

Naevia

Waverly, with its literary resonance and lilting three-syllable sound, could well become the next generation's successor to Kimberly. Its upper-crusty surname feel places it among the new stylish <a href="https://nameberry.com/baby-names/501/english-names-for-girls">English names for girls</a>, successors to Ashley and Whitney.
 Spelled Waverley, this is the title of Sir Walter Scott's popular 1814 novel, whose hero is a young English soldier named Edward Waverley (it's believed that Scott named the novel after the model of pen he used to write it). Spelled the more streamlined way, Waverly is the name of the daughter of Buttercup and Wesley in The Princess Bride and a memorable character in The Joy Luck Club, who was named by her Chinese mother for the San Francisco street on which the family lived.
 Waverly Place in Greenwich Village was named for the Scott novel in 1833--dropping the second 'e', and was the setting of the teen show The Wizards of Waverly Place, as well as Don Draper's bachelor pad in Mad Men, as well as a character on Friday Night Lights.

Waverly

Zelara

eleya

emalynn

3cupcakes's list "The Unique Girl Name List" of 26 great name ideas: Aeva - emalynn!