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.
quean queen quin guan quoin guano quinoa guanay guinea ken gan can gun gane kane kana koan kune gaen keen kaon cane gaun keno gain kuna kain cain
quean lean yean dean ruana rouen pean paean meany mean lauan bean queen guano guan jean beano wean yuan
qua quai quay queue quey aqua aquae quack quacky quag quagga quaggy quake quaky squaw