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.
foredid fordid forded foredate farded farted fretted fritted fruited ferreted fortuity
redid foredid reded fordid credit sordid
foredo ford fared fiord fired fordo forte freed fried