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.
modiste moodiest modest modesty midst muddiest maddest matiest mitiest meatiest medicide matzot mutest
modiste hoodiest seediest ruddiest reediest odist moodiest neediest gaudiest leadiest caddised judoist giddiest iodised weediest dowdiest shadiest deediest deist batiste headiest didst dadaist sadist rowdiest readiest muddiest nudist fideist bawdiest beadiest faddiest faddist feudist woodiest tidiest shoddiest