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.
keddahs kiddos kiddoes kiddies kids kats coeds kudus kites codas katas kudos kadis keets kytes ketose caddis gaddis caddies codeias cuddies gateaus goddess kitties koodoos
chuddahs keddahs dahs houdahs howdahs middays odahs whidahs whydahs