I would go for another shortish, two syllable name but not an ie ending or an A beginning. Oh, and not Bella or Elsa!
Clara, Cara, Carys, Cleo, Emma, Ella, Eva, Erin, Eden, Flora, Freya, Greta, Giselle, Hannah, Hazel, Honor, Isla, Iris, Kiera, Layla, Lyra, Lois, Leah, Laura, Mila, Mika, Mala, Martha, Maia, Nina, Nyah, Orla, Pippa, Rosa, Rhiann, Seren, Sara, Summer, Tara, Tessa, Thea, Willow, Zara