I love a lot of your names!
Names similar in style/sound to your first names list :
[name]Adelaide[/name]
[name]Bellamy[/name]
[name]Blythe[/name]
[name]Cecily[/name]
[name]Charlotte[/name] nn [name]Lottie[/name]
[name]Clara[/name]
[name]Cora[/name] (nn for [name]Cordelia[/name]?)
[name]Daphne[/name]
[name]Delphine[/name]/a
[name]Eloise[/name]
[name]Esme[/name]
[name]Freya[/name]
[name]Isadora[/name]
[name]Lydia[/name]
[name]Margot[/name]
[name]Mirabel[/name]
[name]Paloma[/name]
[name]Polly[/name]
[name]Saskia[/name]
[name]Stella[/name]
[name]Willa[/name].
[name]Angus[/name]
[name]August[/name]
[name]Dashiell[/name]
[name]Edmund[/name]
[name]Edward[/name]
[name]Emmett[/name]
[name]Fergus[/name]
[name]Finn[/name] ([name]Finnian[/name], [name]Phineas[/name], [name]Finnegan[/name], [name]Findlay[/name])
[name]Freddie[/name] ([name]Alfred[/name] [could also nn [name]Alfie[/name]], [name]Wilfred[/name], [name]Frederick[/name])
[name]Iago[/name]
[name]Jude[/name]
[name]Luca[/name]
[name]Matthias[/name]
[name]Maximilian[/name]
[name]Nathaniel[/name]
[name]Otto[/name]
[name]Rafferty[/name]
[name]Rocco[/name]
[name]Theodore[/name]
[name]Tobias[/name] nn [name]Toby[/name].
You also seem to like flower names, so how about :
[name]Azalea[/name]
[name]Calla[/name]
[name]Camelia[/name]
[name]Dahlia[/name]
[name]Flora[/name]
[name]Magnolia[/name]
[name]Marigold[/name]
[name]Rosa[/name].
Names which could give the nn [name]Nora[/name] include [name]Annora[/name], [name]Honora[/name], [name]Honoria[/name], [name]Honorine[/name], [name]Eleanor[/name], [name]Lenore[/name] and [name]Eleanora[/name].
Names which remind me of your middle names :
[name]Matilda[/name] - [name]Ottilie[/name], [name]Ottoline[/name]
[name]Clementine[/name] - [name]Evangeline[/name]/a, [name]Seraphine[/name]/a, [name]Valentine[/name]/a
[name]Ophelia[/name] - [name]Olympia[/name], [name]Sophronia[/name]
[name]Helena[/name] - [name]Eleanor[/name]
[name]Eliza[/name] - [name]Kate[/name], [name]Caroline[/name]
[name]Beatrice[/name] - [name]Lettice[/name], [name]Beatrix[/name], [name]Bellatrix[/name]
[name]Felicity[/name] - [name]Verity[/name]
[name]Penelope[/name] - [name]Calliope[/name], [name]Xanthe[/name], [name]Ariadne[/name], [name]Rosalie[/name], [name]Thisbe[/name]
[name]Juniper[/name] - [name]Clover[/name], [name]Saffron[/name], [name]June[/name], [name]Wren[/name], [name]Lark[/name]
[name]Juliet[/name] - [name]Isolde[/name], [name]Harriet[/name], [name]Susannah[/name]
[name]Aurora[/name] - [name]Genevieve[/name], [name]Apolline[/name], [name]Amandine[/name].
[name]Sebastian[/name] - [name]Caspian[/name], [name]Dorian[/name], [name]Emilian[/name]
[name]Atticus[/name] - [name]Amos[/name]
[name]Felix[/name] - [name]Rex[/name]
[name]Drake[/name] - [name]Zane[/name]
The rest I’ve already mentioned all of the names I can think of for.
Good luck! [name]Auburn[/name]