My favorite is
Delphine Esther Violet - despite the individual names having different vibes, they fit together surprisingly well.
Rosanna Elizabeth Adelaide is absolutely lovely.
Madeleine Rose,
Amelie Rose, and
Theo Jasper are nice as well.
I gotta admit, the sheer elaborateness of
Quentin Cuthbert Ambrose Cheongho and his siblings is impressive. Almost intimidatingly impressive.