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.
suit suite sit site suet sutta saute suety suttee sty sot sat zit set city cite sued seat staw said side sadi stay stoa seta sett soot stey sudd sati sate stow stew sidh ziti satay setae sooty stewy stoae stoai suede