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.
quais quasi quays quass qis queasy quiz quassia queys guise queues queazy cuisse kas kis gas kaes kays kiss caws koas guys kaas kues gays goas keas case cuss cays casa kois gaes cues
quais ais chais daisy guise quasi quass quays liaise louies louis luaus paisa paise raias rais raise dais tuis chaise
quai qua quay aqua aquae guaiac quack quacky quag quagga quaggy quake quaky quick quickie squaw