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.
burette buret barrette biretta beretta britt breed beret birretta brute brede berretta berate burdie borate burred baryte barret barite buried bratty burrito brit bred brut brat burd bort bourride boart borty barde bread bride bared bruit bored bready bright barred baryta birdie birred boride berried
burette syrette barrette curette rete beretta aureate laureate garotte retie rotte arete ariette fretty pretty berretta garrotte biretta pirouette birretta proette create terete ret