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.
mutually mutual mutule mutuel mutely modally medially metal madly meatal muddly motley meetly medulla meatily muddily medullae modal medal motel metol medley mettle module moduli modulo motile mottle muddle medial
mutually ritually dually dally tidally dully tally fatally feudally vitally caudally coitally medially modally nodally radially retally ideally totally