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.
fideist feudist faddist fittest faddiest fattiest footiest fattest featest feticide voodooist
fideist deist faddiest beadiest bawdiest baddest doest leadiest faddist loudest modest modiste nudest muddiest pietist readiest reediest ruddiest saddest seediest deadest didst tidiest widest shadiest oddest feudist haddest odist hoodiest giddiest judoist gaudiest quietist lewdest headiest maddest modesty moodiest nudist neediest podesta reddest rowdiest rudest sadist dadaist deediest dowdiest weediest woodiest shoddiest