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.
stewy stey stew sty stay stow sate staw site saute setae suety suite satay seedy stoae sooty suttee settee sit sat sot set cete sade suet sued sett stoa soot seta side city sati cite seat suit seed
stewy tew dewy towy cutey matey motey stew stey whitey