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.
retools retails rootles retiles retells rotls rootless retallies ratals ratels redials reddles rituals rattails reutilize raddles radials radulas rattles riddles ridleys rodless ruddles rutiles
retools stools tools ketols stoles sotols citoles citolas metols atolls phytols tolus tolls toles tolas toils wittols