Harmonia rhymes with:
philharmonia, philharmonia, philharmonia, omonia, philharmonia, adonia, amazonia, ansonia, antonia, caledonia, colonia, cydonia, diaphonia, donia, estonia, gastonia, gonia, idonia, latonia, macedonia, madonia, new-caledonia, omonia, patagonia, petronia, philharmonia, rondonia, sidonia, sinfonia, slavonia, slovonia, sophronia, tonia, vernonia, vidonia
Harmonia sounds like:
harahan, haran, harem, haren, harima, harm, harman, harmen, harmon, harmonie, harmonium, harmony, harn, harne, harney, harren, harriman, harron, harroun, harryman, haryana, hearin, hearn, hearne, hearon, hearron, heeren, heermann, herein, herin, herm, herman, hermann, hermenio, hermia, hermie, hermina, hermine, herminia, herminie, hermon, hern, hernan, herne, hernia, hernon, heroin, heroine, heron, herren, herriman, herrin, herrman, herrmann, herron, herronimo, heryana, heuerman, heuermann, hiram, hirano, hirayama, hirn, horan, horen, horine, horman, hormann, hormone, horn, horne, horney, horny, hourihan, hren, hron, hurm, hurn, hurney, huron