Eureka rhymes with:
alarica, chandrika, costa_rica, enrica, farica, fredericka, frederika, paprika, rica, ricca
Eureka sounds like:
ears, earwax, ehrich, ehrig, ehrke, eirich, era's, eras, erase, erases, erazo, erceg, erck, ergo, eric, eric's, erica, erich, erick, ericka, erik, erik's, erika, erisa, erk, eroica, eros, errico, errors, errs, ers, erykah, eurasia, eureca, eurich, eurocheck, eurochecks, euros, ewers, eyrich