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