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.
quavery quaver quivery quiver quaffer caver cover caviar covary gaffer caviare cougher gauffer
knavery quavery wavery very aver savory haver waver leavier caver heavier revery wafery leaver laveer raver quivery laver shaver wavier veery waiver newwaver weaver saver faery suaver quaver aiver livery beaver paver heaver naiver every reaver shivery