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.
roscoe rescue reseek risque
roscoe scow soke fescue fiasco miscue muscae pisco rescue cisco disco
roes brose dross prossie proso pros crosse cross croci erose eros brosy bros roose arose rows rousseau rouse rosy rose gross prose pross prosy drossy