Potential rhymes with:
confidential, differential, essential, experiential, henschel, inferential, jurisprudential, nonresidential, quintessential, anschel, confidential, differential, essential, experiential, financial, henschel, hounshell, inferential, interprovincial, jurisprudential, minshall, nonfinancial, nonresidential, provincial, quintessential, wunschel
Potential sounds like:
patently, patiently, potentially