A lot of the popular and trendy names from the last 20 years are actually very Old Hollywood inspired (my personal theory)!
AvaVivian (also
Vivienne by extension)
OliviaEleanorEvelynElizabethGraceAudreyLillianKatharineHarlowTaylorMonroeLaurenSophia
JamesJackOliverSpencerCooperFlynnHudsonParker (m & f)
Quinn (m & f)
HoldenHarrison
I think though that these names have become SO trendy that they no longer evoke that golden age glam anymore, so for me, the crunchy, uncool first names of the stars are what really sound Old Hollywood:
ClaudetteJeanneBetteJoanYvonneMarilynGreerHedyMarleneGretaDeannaIngridLucilleNormaRita
LaurenceClarkHumphrey CaryBurtRichardErrol