For a start,
Stephen /
Stephanie etc mean "crown", not "victory", so those sets are not valid as theme sets.
I don't like themed sets of any sort (unless they're middle names), and the odds of having triplets are so slight that they don't really concern me lol.
I like these names by themselves:
ZoeSvetlanaHelenaJolanaLuciaElenaGraceMilenaVictoriaEdithFionaMalvina
NicholasGabrielDanielSamuelJulianTheodor (spelled
Theodore)
DaniellaGabriella