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.
vista visit vesta visaed fiesta fist vast vest vised vasty feist foist feisty vestee viscid viseed fissate fast fest
vista seta stay gist feist feisty stoa neist wriest peseta wristy maist cist misty kist zooiest cuesta doughiest costa testae hygieist whist casita shiest staw fiesta fist cesta hist hosta visit vesta heist moist piste pasta wrist list mist foist gooiest siesta costae deist cassata testa hygeist waist joist wist hoist shist