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.
pout pouty put pot putt poet putti putty potty putto potto puttee puttie pud pit pat pod pet paty pita ptui pity pood pate peat peaty petti petto petty pieta pitta pooed podia piety patty
bout gout lout knout out pout rout tout shout ut