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.
fit fiat fat fet fid fete vita foot fido feet feat fate feta fatty footy fytte vitae vitta foodie footie vittae