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.
boffolas baffles befleas befools befouls biofuels buffalos buffaloes biophilias befalls beefless bevels
boffolas fowls seafowls moviolas movieolas foveolas befouls befools befleas violas fouls flaws fools foils foals fleas flays peafowls defleas