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.
petasos petasus petsais poetises paduasoys poetesses ptoses ptosis pitsaws poetizes putzes patsies potsies
petasos fatsoes fatsos mutases paduasoys petasus stases stasis tatsois
pets peats petsai pietas pitas poets