I love all your three favourites! I think my favourite is Ingrid, it feels so crisp and stunning. I actually know a beautiful young woman named Ingrid Helena.
And Helena Augusta Victoria was one of Queen Victoria’s daughters 
I adore aristocratic sounding/ old money names
I’m thinking also:
Annevieve, Anneliese, Annabeth, Annerose, Annabel, Alessandra, Alexandra, Alexandrine, Adele, Adela, Adelen, Adeline, Adaline, Adelaide, Annette, Agnes, Avalon, Arianell, Adamary, Anastasia, Aurelia, Abigail, Adelore, Alicent, Aisling, Alice, Alienor, Avonlea, Amelia, Amalia, Antoinette, Antonia, Auguste, Alice, Alberta, Anne
Beatrice, Bianca, Bryndis
Claudia, Claudine, Claudette, Celestia, Celeste, Celestine, Cordelia, Cornelia, Carmen, Carmina, Cecilia, Cecelia, Caroline, Clementine, Clementina, Caspia, Camila, Camilla, Constance (I like it only with a French accent, like in Three Musketeers
), Cadencia, Cressida, Colette, Cosette, Collette, Celandine, Catherine, Cosima, Charlotte
Daphne, Delphine, Delilah, Dorothea
Eleanor, Eléonore, Eleanora, Esmeé, Esme, Ethelie, Ethelia, Emmeline, Emeline, Emmelina, Evelina, Evelyn, Evangline, Eloise, Elizabeth, Elspeth, Emilia, Ellabeth, Eugenia, Elise, Eugenie, Elsienne, Ellender, Eleodora, Elfrida
Felicity, Fleur, Fleuriel, Fleurina, Flora, Feodore
Genevieve, Guinevere, Gwendolyn, Gwendolen, Giselle, Gisella, Gisela, Gloria, Georgiana, Ginevra, Georgia, Georgette
Hyacinth, Helené, Hermione, Hermiina, Hermine, Hedvig, Hestrid, Honora, Henriette, Henrietta
Isolde, Isabelle, Isabella, Isobel, Imogen
Josephine, Jane, Josette, Juliette, Juliet, Jacqueline
Katherine, Katerina, Kate
Leandra, Lavender, Lavinia, Lauren, Laurelia, Lucy, Luciana, Louise, Louisa
Margarethe, Margaret, Marguerite, Matilda, Mathilde,
Marié, Maria, Mireille, Mirelle, Madeleine, Marlene, Meredith, Marion, Maxine, Maxima, Morwenna, Mary, Maud
Nicole, Nicolette, Nathalie
Odette, Odetta, Ottilie, Ondine, Odelia, Ophelia, Ophelie, Opal, Opaline, Odessa, Olivette, Olympia, Octavia, Oceana, Ottalina, Oona
Primrose, Phoebe, Petra, Pricilla, Philippa, Pearl, Prunella, Pernille
Quintessa
Rosebeth, Rosenelle, Roselore, Rosaline, Rosalie, Rosemary, Ramona, Rowena, Rowenna, Regina, Reina
Sylvia, Sylviana, Sylvania, Sylvaine, Simone, Simona, Seraphina, Seraphine, Sistine, Sophia
Tabitha, Tallulah, Theresa, Therese
Una, Ursaline, Ulrike
Victoria, Victoire, Verona, Vespera, Violet, Violetta, Vivienne, Vivian, Viola, Veronique, Veronica, Vanessa
Winifred, Wilhelmina, Wilhelmine, Willamina, Wisteria
Yvaine, Yvette, Ysolde, Ysobel, Yvelisse