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.
tortuous torts tortoise trouts tortas tortes toroids trots tarts trets tarots traits treats dorados territs terrets diorites treatise treaties darts dirts turds druids trades treads triads
virtuous tortuous riotous arduous virtuosa virtuose virtuosi virtuoso courteous pyritous