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.
queazy queasy quays queys quiz gauzy quais quasi quass causey queues quassia
queazy easy feaze fezzy hazy jazzy gauzy queasy lazy lezzy mazy resay wheezy
qua quai quay queue quey aqua aquae quack quacky quag quagga quaggy quake quaky squaw