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.
brad broad braid bread bready byroad bird bred burd brat bard board bride beard brood brede bored breed bared barde burdie baryta buried birred broody boride birdie bratty borate hybrid barred berate burred beretta berried biretta bort brit bourride brut berretta birretta beret boart borty britt bruit brute buret