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.
modulo module moduli modal model modioli moodily modally medulla medullae motel madly metol medal mutuel muddle mutual mutely muddly medial meddle mottle motile middle medley motley mutule muddily medially mutually
modulo dual duel dull duly module moduli nodule pedalo radula cedula
mod meoued mode modi mood moody