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.
motley mottle motile motel medley mettle mutule meetly module mutely modally meatily moodily mutually metol madly modal model metal meddle modulo meatal muddly middle mutual muddle mutuel moduli modioli muddily medially medullae
motley tole tule cuttle cattily tattily rutile meetly battle tele lately pettily citole guttle mutule nettle beetle cuittle haughtily doyley wetly nattily pottle chattily whittle utile tautly dottle rattly futile ridley tittle mottle nuttily diddley tile sootily meatily stele motile stole outlie kittle featly patly bottle vittle cattle butle neatly mutely goutily ruttily quietly knottily fitly fatly medley rootle doughtily hotly cutely fattily wattle pettle kettle nettly outlay stile mettle stale little settle fettle style tale wittily title retile footle rattle dottily tattle tootle whitely shuttle
mot moat moot mote motey mott motte motto emote smote