I really love [name_f]Josephine[/name_f] but am put off by the popularity of it. Any other names out there with a similar feel?
[name_f]Seraphina[/name_f]
[name_f]Lucille[/name_f]
[name_f]Valentina[/name_f]
[name_f]Samantha[/name_f]
[name_f]Georgiana[/name_f]
[name_f]Juliet[/name_f]
[name_f]Tatiana[/name_f]
[name_f]Viola[/name_f]
I would suggest…
[name_f]Jessamine[/name_f]
[name_f]Theodora[/name_f]
[name_f]Henrietta[/name_f]
[name_f]Francesca[/name_f]
[name_f]Juliet[/name_f]
[name_f]Harriet[/name_f]
[name_f]Antonia[/name_f]
[name_f]Josepha[/name_f]/[name_f]Josefa[/name_f] is another feminine form of [name_m]Joseph[/name_m].
[name_f]Genevieve[/name_f]
[name_f]Catalina[/name_f]
[name_f]Esmerelda[/name_f]
[name_f]Evangeline[/name_f]
[name_f]Adelaide[/name_f]
[name_f]Clementine[/name_f]
[name_f]Philomena[/name_f]
[name_f]Wilhelmina[/name_f]
[name_f]Phyllis[/name_f]
[name_f]Philippa[/name_f]
[name_f]Celestine[/name_f]
[name_f]Dorothea[/name_f]
[name_f]Georgina[/name_f]
[name_f]Winifred[/name_f]
Personally, I think [name_f]Seraphina[/name_f], that someone else suggested, is the best option. It has a very similar sound to me but is much more rare.
I didn’t know [name_f]Josephine[/name_f] was that popular - I’ve never actually met someone with that name before.
[name_f]My[/name_f] first thought:
[name_f]Henrietta[/name_f]
[name_f]Theodora[/name_f]
[name_f]Margaret[/name_f]
[name_f]Alienor[/name_f]
[name_f]Antoinette[/name_f]
[name_f]Caroline[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Emmanuelle[/name_f]
[name_f]Isabella[/name_f]/[name_f]Isabelle[/name_f]
Léonie
[name_f]Mathilde[/name_f]
[name_f]Melisande[/name_f]
[name_f]Rosemonde[/name_f]
I think it very much depends on where you’re from. [name_f]Josefine[/name_f]/[name_f]Josephine[/name_f] is the eighth most popular girls name in Denmark.
[name_f]My[/name_f] name is [name_f]Josephine[/name_f] and I’ve never met anyone else with the name. And I’m almost 23 and have lived in several Australian states. 
[name_u]Marion[/name_u]
[name_f]Marianne[/name_f]
[name_f]Elinor[/name_f]
[name_f]Eloise[/name_f]
[name_f]Imogen[/name_f]
[name_f]Rosalind[/name_f]
[name_f]Dorothy[/name_f]
[name_f]Helena[/name_f]
[name_f]Beatrice[/name_f]
[name_f]Geraldine[/name_f]! 
I like the [name_f]Josephina[/name_f] version too. Other suggestions:
Ysaline
[name_f]Evelina[/name_f]
[name_f]Beatrice[/name_f]
[name_f]Seraphine[/name_f]/[name_f]Seraphina[/name_f]
[name_f]Adeline[/name_f]
[name_f]Nancy[/name_f]
[name_f]Amandine[/name_f]
[name_f]Georgina[/name_f]
[name_f]Cathy[/name_f]
[name_u]Felice[/name_u]
[name_f]Verity[/name_f]
… OK, this was difficult!
[name_f]Josephina[/name_f] is a little different!
[name_f]Genevieve[/name_f]
[name_f]Eleanor[/name_f]
[name_f]Bernadette[/name_f]
[name_f]Katherine[/name_f]
[name_f]Jacqueline[/name_f]
[name_f]Georgine[/name_f] is beautiful and sounds similar
I like [name_f]Josephine[/name_f] too! I would suggest [name_f]Penelope[/name_f], [name_f]Eliza[/name_f] or [name_f]Harriet[/name_f] as an alternate.
Or to go down the feminisation of a classic male name, a few quirkier choices would be Willimena, [name_f]Timothea[/name_f] or [name_f]Georgina[/name_f]?
I like [name_f]Margaret[/name_f] (nn [name_f]Daisy[/name_f] or [name_f]Polly[/name_f]) and [name_f]Frances[/name_f]
[name_f]Jensine Merritt
Philomena[/name_f] or Philomein nn [name_f]Mina[/name_f]
[name_f]Aquilina[/name_f],
[name_f]Elayna[/name_f]
If you want the “[name_u]Jo[/name_u]” part of the name, but not sure of [name_f]Josephine[/name_f]/a You could try
[name_f]Josette[/name_f]
[name_f]Johanna[/name_f]
[name_m]Jose[/name_m]
[name_f]Delphine[/name_f]
[name_f]Rosaline[/name_f]
[name_f]Emmeline[/name_f]
[name_f]Caroline[/name_f]
[name_f]Jessamine[/name_f]
[name_f]Jasmine[/name_f]
[name_f]Seraphine[/name_f]/[name_f]Seraphina[/name_f]
Wilhemina
[name_f]Genevieve[/name_f]
[name_f]Daphne[/name_f]
[name_f]Florence[/name_f]
[name_f]Imogene[/name_f]
[name_f]Clementine[/name_f]
[name_f]Adeline[/name_f]
[name_f]Isadora[/name_f]
Phoebw
[name_f]Evelina[/name_f]
[name_f]Aveline[/name_f]
[name_f]Evangeline[/name_f]
[name_f]Persephone[/name_f]
[name_f]Lillian[/name_f]