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.
cadi cad caddie gadi qadi cade caid kadi coati caddy gaddi cuddie cattie cod cud cat gad qaid code cued gait gaed goad coda cate coat coed gaud quad catty cooed cotta coude cuddy cutie gaudy
cadi gadi kadi qadi padi sadi wadi ad