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.
shiest shist chest chesty chaste cheesed
gooiest zooiest doughiest shiest wriest vesta gist fiesta nest deist testa feast foist vest beset fist west kist list least best zesty hist hoist shist chesty waist gest hygieist piste hest resat wist wrest resit wrist cesta cist society visit mist lest hygeist maist pest heist guest neist cuesta weest doest wristy quest geste pesto test reset geest pesty chest cesti joist fest moist jest beast zest siesta misty east feisty whist besot rest vista feist testy reest yeast
shies sheas shes sheughs shews shoes ashes schizo schizy schizzy sheuchs