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.
woes wos waes wows woos wees whews wheys whose whoso was wis waws ways whys wise wiss wuss ywis wazoo woozy wussy
foes voes hoes joes goes noes oes roes does toes woes shoes es os