This list is mostly for my own reference: I frequently need such names when, for example, the parents like Elizabeth and Olivia but find them too common, or when the first and last names seem like they'd go well with a middle name of this length and rhythm. So then I think, "I know I've looked for such names before---I will look through my archives for lists." But then the lists I find are partial, because I've sorted the names for the ones that work for that particular family. SO: now I will have a full list to refer to---and so will other people who need the list. The list is (clearly) not complete yet, but we can add to it: if you think of another, mention it in the comments.
Alivia
Amelia
Angelica
Antonia
Aurelia
Bedelia
Calliope
Cecelia
Cordelia
Corinthia
Cornelia
Elisheva (maybe--having trouble finding consistent pronunciation)
Elisabeth
Elizabeth
Emilia
Evangeline
Felicity
Hermione
Honoria
Kalliopi
Lavinia
Livinia
Magnolia
Octavia
Olivia
Olympia
Ophelia
Penelope
Persephone
Serenity
Veronica
Victoria
Zenobia
3.5-syllables:
Acacia
Azalea
Eugenia
Stefania
Virginia
