[name]Juliette[/name]'s great! My thoughts:
[name]Mette[/name] - I think this looks too similar to [name]Juliette[/name], and it being pronounced like meta just makes me think of a prefix (meta-analysis, metamorphosis, you get the picture…)
[name]Althea[/name] - [name]Gibson[/name]! Hm. This feels very different, style wise, from [name]Juliette[/name], but I like the sound.
[name]Celeste[/name] - [name]Love[/name] it!
[name]Lene[/name] - [name]Lena[/name]? Looks like a nickname for [name]Helene[/name], which by the way, I adore.
[name]Marisa[/name] - Cute! But, feels off, style wise, with [name]Juliette[/name].
[name]Lia[/name] - [name]Love[/name] this! [name]Love[/name] [name]Lea[/name], too, as it looks less like a nickname for [name]Celia[/name] or something. Oh, [name]Celia[/name]'s cute, too!
[name]Portia[/name] - This always makes me think of a snobby brat, but that could just be me. Oh, and the car! [name]Porsche[/name]!
[name]Bronwyn[/name] - Feels way off with [name]Juliette[/name], to be honest.
[name]Margot[/name]/[name]Margaux[/name] - [name]Love[/name] it! [name]Love[/name] 'em both, but [name]Margaux[/name] feels a little more unusual. Like [name]Margo[/name], too!
Cielle - [name]Ciel[/name]? I’ve not seen the -elle spelling, but [name]Ciel[/name] is cute. [name]Way[/name] more unusual than [name]Juliette[/name], though.
My suggestions: [name]Adela[/name], [name]Aurora[/name], [name]Amelie[/name], [name]Bianca[/name], [name]Celia[/name], [name]Camille[/name], [name]Corinne[/name], [name]Christabel[/name], [name]Delia[/name], [name]Diana[/name], [name]Evangeline[/name], [name]Eva[/name], [name]Elora[/name], [name]Fiona[/name], [name]Flora[/name], [name]Gwendolyn[/name], [name]Giselle[/name], [name]Gisella[/name], [name]Genevieve[/name], [name]Helene[/name], [name]Isabel[/name], [name]Iris[/name], [name]Irena[/name], [name]Kaia[/name], [name]Kira[/name], [name]Katharine[/name], [name]Lucinda[/name], [name]Leila[/name], [name]Lucienne[/name], [name]Lenora[/name], [name]Lorena[/name], [name]Livia[/name], [name]Miranda[/name], [name]Mireille[/name], [name]Marguerite[/name], [name]Natalia[/name], [name]Ophelia[/name], [name]Phoebe[/name], [name]Rosaline[/name], [name]Rosalia[/name], [name]Regina[/name], [name]Rochelle[/name], [name]Reina[/name], [name]Simone[/name], [name]Stella[/name], [name]Sylvie[/name], [name]Therese[/name], [name]Viola[/name], [name]Vivien[/name], [name]Valerie[/name].
[name]Lemon[/name]