I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
levirate levered leveret livered laveered liveried louvered
levirate ferrate phorate variate virtue biforate bivariate ephorate covariate overate overrate