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.
resay resaw res reseau roes reis rues rees rosy rays racy resee reuse wries resew roues resow ras reissue rousseau razz rise rows race raze rias rice rais rose rase ruse raws
resay say seesaw assay bioassay easy essay queasy queazy messy mesa missay naysay newsy poesy resaw says cheesy