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.
bratty brat britt borty bready berate borate burette beretta biretta brut brad brit bort barrette berretta birretta bruit braid bread boart buret brute beret broad barite barret baryta baryte bright broody byroad burrito
ratty bratty rutty arty fretty hearty gritty grotty party pretty tarty treaty warty