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.
ruffles riffles raffles rifles reflies refiles roofless refels reflows reviles refills refeels refalls refuels revalues rivulose reveilles ravels revels rivals reveals
coffles baffles raffles souffles waffles muffles shuffles ruffles whiffles piffles duffles riffles fleys shooflies floes reflies offals duffels flies fleas leafless beefless hoofless rifles defleas cuffless flues defiles befleas files dayflies flews roofless flees refiles sawflies mayflies
ruffle ruffly raffle riffle gruffily gruffly truffle