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.
roquettes roquets requites ragouts rockets regattas ricottas reacts recuts rackets recoats recodes rickets ruggedize
baguettes coquettes maquettes moquettes roquettes cutties jockettes
roquet roquette croquet croquette