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.
tardo tared tarot tardy tarred teared teredo trad tarried turd trod tart trot dared torot tread trode tarty tired trade tried triad tyred trued treed trout tirade toroid torrid trouty toured triode tiered deaired dart tort tret
tardo beard garda quarto cared pared pardi reared geared card hardy seared sard dared roadeo heard bard board bared yaird tared hairdo teared barde uredo arid liard wared chard lard shaird neared shared ordo redo eared caird hared fordo soared roared sarod hard hoard dorado rared pard pardy cardio guard credo fared farad radio ward oared shard nard chared laird weirdo lardy sheared feared teredo fard tarot foredo tardy yard
tar tahr tare taro tarre tarry tear teary star stare starry tawdry