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.
motored mitred metred matured metered mitered mattered muttered meteorite meteoroid maturate moderate moderato
motored stored tutored chittered catered uttered pattered toured stared bittered featured battered attired bettered mitred natured adored watered shuttered matured odored loitered pottered lettered retired cottered retried hatred storied detoured teetered tottered muttered jittered fettered mattered puttered littered treed tried tread tyred neutered mitered nattered torte tired metered guttered metred retread reuttered gettered trued tared sutured tattered tittered petered outread buttered waitered chattered shattered yattered