Antonia rhymes with:
estonia, gastonia, latonia, tonia, adonia, amazonia, ansonia, caledonia, colonia, cydonia, diaphonia, donia, estonia, gastonia, gonia, harmonia, idonia, latonia, macedonia, madonia, new-caledonia, omonia, patagonia, petronia, philharmonia, rondonia, sidonia, sinfonia, slavonia, slovonia, sophronia, tonia, vernonia, vidonia
Antonia sounds like:
amadon, amandime, amidon, ammunition, anathema, anatomy, andean, andino, andonian, animation, annotation, antenna, antennae, antenne, anthem, anthon, anthony, antoine, anton, antone, antoni, antonin, antonini, antonio, antoniou, antoniu, antony, antoon, antuna, antwine, anytime