I'm reading your original post as saying that you don't like any names on your list enough to use them. Apologies if that's not the case. How about:
Similar vibe:
Alma, Alba, Agnes, Adele, Anais, Ailsa, Alice, Arwen, Ada, Bronte, Blythe, Bonnie, Betty, Bessie, Cerys, Claire, Clarice, Dana, Dolly, Dora, Effie, Ella, Esme, Enid, Flora, Faith, Fleur, Grace, Honor, Hazel, Heidi, Ida, Irena, Inez, June, Josie, Judy, Kaye, Laya, Lois, Laura, Lara, Mary, Martha, Mara, Marnie, Mabel, Maeve, Nita, Nora, Niamh, Noelle, Olive, Orla, Peggy, Pippa, Posy, Remi, Romy, Rita, Sylvia, Sara, Sorrel, Tara, Thea, Una, Vita, Vera, Winnie, Zia, Zara
I also think Clara goes well with:
Abigail, Annabelle, Beatrice, Beatrix, Camilla, Cecilia, Daphne, Delilah, Emmeline, Evelyn, Frances, Felicity, Georgina, Giselle, Harriet, Harmony, Isabel, Imogen, Juliet, Joanna, Katherine, Katrina, Liliana, Leonie, Miranda, Madeleine, Natalia, Naomi, Olivia, Octavia, Phoebe, Philippa, Rosanna, Romilly, Sophia, Scarlett, Thalia, Tamara, Verity, Victoria