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.
petto putto potto petti petty pet putt peat poet pieta potty pitta putty piety patty peaty putti ptooey pattie puttee puttie pattee pot ped pit put pat pod pity pout ptui paty peed pied pita pate pood
petto ghetto tattoo datto putto potto petty petti otto netty motto nett lotto keto jetty veto fouette betta sett ditto yett