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.
covaried covariate covered coffered coiffured covert coffret goffered quavered quivered gauffered cavort
varied covaried safaried chivaried faired fared feared ferried fried afeared liveried refried chivareed shivareed