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.
stasis stases setaceous sudses situses
stasis judases tootsies geodesies ptosis petsais petasus petasos patsies mutases mitosis ketosis daisies dassies footsies tussis teases tassies diesis potsies stases tatsois whatsis
satays sets sits sots stays stoas stoss seasides tassets tastes toasts