Adeline - Quite like it. Addie is a cute shortening
Amelie - Quite like it.
Annabel - Really like it. Less keen on Annie or Bella, I'd try and keep it as a whole name which might not be easy.
Annalise - torn between whether I think this is very 70s and dated or actually really elegant and pretty. Honestly don't know. Maybe it's both.
Camille/Camilla - I like Camilla but not Camille. Don't like the mealy sound.
Cassia - really like it. Also like Cassandra and Cassidy.
Clara - it's ok. Not that keen.
Emmeline - Quite like it. Prefer Emily and Emma
India - really like it. Very pretty and quite unusual, in my experience.
Isabelle - really like it.
Sasha - like it.
I would choose Cassia or India, I think.
Other ideas:
Aurelia, Arabella, Araminta, Amberley, Alexandra, Charlotte, Clarissa, Cordelia, Evangeline, Eleanor, Felicity, Francesca, Georgina, Gabriella, Harriet, Henrietta, Imogen, Juliet, Joanna, Katherine, Lorelai, Larissa, Miranda, Madeleine, Natalia, Octavia, Olivia, Philippa, Rosalie, Rosanna, Sophia, Susannah, Stella, Tamara, Victoria, Zara