Wirtz rhymes with:
squirts, werts, wertz, worts, wurtz, alerts, asserts, averts, bertz, blurts, burts, cherts, curt's, curts, desserts, dirt's, diverts, ertz, exerts, flirts, gertz, geurts, gurtz, hirtz, hurts, inserts, kertz, kirts, kurtz, mertz, mirtz, reasserts, reverts, schertz, schmertz, shirts, shurtz, skirts, spurts, squirts, sturtz, subverts, vertz, virts, werts, wertz, worts, wurtz
Wirtz sounds like:
ward's, wards, warheads, warts, weerts, weirdos, werts, wertz, word's, words, worth's, worthies, worthog, worths, worts, wreaths, writes, writs, wuertz, wurtz