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.
quivery quiver quavery quaver quaffer caver cover covary cougher gauffer goofier
livery quivery shivery very wiver vivary shiver fiery wavery veery diver aiver river every revery fiver naiver livier waiver jiver jivier quavery quiver liever liver ivory knavery reiver riever siver giver