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.
pot pout poet pouty potto potty pit put pat pod pet pood pate ptui pita putt pity paty peat patty putto putti pooed petti piety pitta podia petty pieta petto peaty putty hypoed pattee pattie ptooey puttee puttie