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.
stey stewy sty sate stew stay site suite suety satay saute seedy sooty setae stoae suttee settee sit set sot sat staw city stoa seed cite sett seta seat suit sade sati side soot stow cete sued suet soddy stoai suede sutta zooty