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.
bird birred birdie brad bred burd bard bared bride barde beard breed bread braid brood board broad bored brede buried bready byroad burred barred broody hybrid burdie boride berried biretta brit bort bourride brut birretta brat beret boart borty britt bruit brute buret
bird gird caird laird weird shaird yaird yird