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.
caribe carb crib caribou carbo carob carboy corbie carabao crab curb garb corby grebe crabby
caribe bribe tribe rib corbie zariba probe oribi grebe crib aerobe barbie barbe arriba rube robe drib bribee
car acari scarry scarey scare scar cakier agria curio care curie curiae curia coria carry carr scary