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.
powwowing pawing
bowwowing wowing powwowing owing showing meowing towing sowing rowing knowing mowing lowing miaowing jowing vowing bowing wooing dowing chowing cowing yowing wing