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.
borty bort boart borate bratty brut brat brit brute britt bored buret board bruit beret baryta barite bready berate boride baryte barret bright broody biretta beretta burette barrette berretta birretta bourride bard bird brad bred burd
borty forty shorty dorty ort fort ferrety court parroty korat port forte sort verity purty surety boart torot torta trouty whort wort cherty short carroty arty grouty purity mort bort grotty parity party rarity rooty dirty ferity aorta hearty tarty tort torte warty wordy charity shirty sorta
boar boor bora bore borrow bourree