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.
kadi cadi gadi qadi gaddi caddie kiddie kid cad kit gad kat kata qaid cade kudu caid kudo goad gait gaud kite gaed quad caddy coati gaudy kiddo kiddy kitty
cadi gadi kadi qadi padi sadi wadi ad