Another vote for Aphra here. LOVE it. Is Ione like Iona but with an e (Eye-oh-nee)? If so, I quite like that too. And I do like Star but agree it's too much with Hero (poor old Quincy would get a complex!) I only like Indie as a nn for India. I really like Rain, River and Echo but I would worry they're just too much on the hippie front. Not keen on Phoenix for a girl, though I do like it for a boy.
Sure there's some repeats here but how about:
Astrid, Avery, Alba, Amberley, Autumn, Artemis, Aria, Avalon, Amaya, Bronte, Briar, Cassia, Calypso, Coralie, Cordelia, Cornelia, Cressida, Cherry, Devon, Danika, Effie, Eirlys, Eilidh, Everley. Evadne, Fabia, Fallon, Firra, Ffion, Giovanna, Isadora, Jessamy, Juniper, Jerica, Kiki, Livia, Lorelai, Larissa, Lavender, Lyra, Mika, Mila, Mala, Misty, Noa, Nyah, Nia, Niamh, Nadia, Ocean, Piper, Pepper, Paloma, Pandora, Persephone, Rowena, Robina, Ramona, Rhiann, Rosalie, Rosanna, Sorrell, Sylvia, Saffron, Sienna, Safiya, Soraya, Sapphire, Tamsin, Tamara, Una, Verity, Vanessa, Willow, Xanthe, Xanthippe, Yvette, Zellah, Zelda, Zia, Zeryn