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.
feet fet feed feat feta fete feued fat vet fed fit fouette fade fate feod feud fiat foot veto fatty footy fytte
beet feet keet leet meet deet weet sheet et