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.
barbet barbette barbed barbut barbate bareboat browbeat bribed burbot
barbet sorbet sherbet rabbet barbed barbut browbeat burbot herbed turbit curbed kerbed orbed orbit sorbed deorbit drabbet turbot garbed
barb barbe barbie bribe bribee burb