Holly and Ella are both nice. Love Anya.
Other ideas:
Amber, Ayla, Alice, Alexa, Anna, Abbie, Angel, Aoife, Ava, Astrid, Bella, Bonnie, Betsy, Bethan, Cara, Cerys, Ciara, Carys, Chloe, Connie, Cassie, Callie, Casey, Dana, Daisy, Darcey, Emma, Eva, Erin, Elin, Enya, Etta, Esme, Edie, Elsa, Effie, Farrah, Ffion, Flora, Freya, Gracie, Georgie, Giselle, Hannah, Hazel, Heidi, Hayley, Isla, Ivy, Iris, Ingrid, Jasmine, Jayla, Jessie, Josie, Jodie, Kayla, Kyla, Kyra, Karen, Katie, Kitty, Kenzie, Laura, Lara, Lana, Lena, Lila, Luna, Leah, Lola, Libby, Lottie, Lacey, Lexie, Louise, Layla, Lisa, Mary, Martha, Maisie, Mia, Mya, Maya, Molly, Millie, Macey, Miley, Marley, Morgan, Megan, Maddie, Michelle, Orla, Piper, Polly, Poppy, Phoebe, Pippa, Ruby, Riley, Rosie, Rosa, Ria, Robyn, Sara, Sarah, Sophie, Sadie, Stella, Sydney, Sasha, Saffron, Sorrel, Sally, Thea, Tia, Tilly, Tegan, Tessa, Tara, Taylor, Willow, Wendy, Xanthe, Yasmin, Yvette, Zoe, Zara, Zia, Zillah