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.
cues kues cuss cause queys guess cusso cuisse queues cooees cooeys queasy causey cos kaes gaes cays keys case cows caws keas goes cosy coos casa coys guys coss kusso quasi guise quays cosie gauze cosey gauss cozie gussy quais cozey quass
hues cues kues queues lues moues roues rues sues dues es us