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.
caiques cakes cukes quakes caucus cookies gawkies quickies cacas kakis quags cokes coxae cocas kagus kikes cacaos cocoas kaiaks quacks quicks cookeys cuckoos guaiacs quaggas quokkas
fiques caiques piques queys gigues roques toques tuques cheques