Aubrey is more commonly used as a girl's name now, SleepyRoo I love it - though don't like Audrey for some reason.
It's difficult to suggest names as the vetoed list is quite varied and I didn't get the clues for your existing children's names. I like Aubrey, Erin and Harley from the names you mention
Um ...
names like Edith:
Agnes, Connie, Dora, Esme, Elsie, Flora, Freda, Hazel, Ida, Josie, Lily, Mary, Martha, Maisy, Mabel, Maude, Nancy, Nellie, Olive, Pearl, Peggy, Ruby, Tilly, Una, Vera
names like Aubrey and Harley:
Avery, Addison, Ashleigh, Amberley, Bailey, Coco, Camryn, Cassidy, Dakota, Darcey, Ebony, Emery, Eden, Fallon, Genesis, Hayley, Hadley, India, Jasmine, Jade, Kayleigh, Kelsey, Kendall, Kennedy, Leonie, Madison, Mackenzie, Morgan, Nevaeh, Piper, Peyton, Quinn, Riley, Savannah, Sienna, Sabrina, Sutton, Tegan, Tiffany
names like Talullah:
Aurora, Cassandra, Devora, Fionnhuala, Kimberly, Leona, Leandra, Lavinia, Marina, Marissa, Ophelia, Paloma, Ramona, Selena, Serena, Tamika, Tabitha, Tanisha, Tiana, Vanessa, Xenia
names like Georgia, Delilah and Erin:
Anna, Abigail, Alice, Alexandra, Bryony, Bethany, Charlotte, Chloe, Claire, Daniela, Delia, Emma, Emily, Eleanor, Ellen, Evelyn, Florence, Felicity, Grace, Georgina, Gabriella, Hannah, Harriet, Isabel, Imogen, Jessica, Joanna, Kathryn, Katie, Lucy, Lydia, Melissa, Matilda, Miranda, Madeleine, Nicole, Natasha, Natalie, Olivia, Philippa, Phoebe, Rebecca, Sarah, Sophie, Sophia, Stephanie, Samantha, Thea, Victoria, Zoe