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.
byroad broad brad bread braid board brood bready broody bred burd bard brat bird barde beard bride bared breed bored boart brede baryta boride burred burdie barred birred buried birdie borate berate hybrid beretta berried biretta burrito berretta birretta bourride
road byroad broad rod rad corrode raid rota irade board braid crowd joyrode orad hoard brood oread period parody parade brad proud sarod sciuroid dorado droid tirade trad tread trod charade shroud grad rode aroid corody fraud myriad corrade bread read viroid neuroid maraud groat farad grade corrody rood erode grody prod reread sarode zeroed dread hydroid toroid trade triad trode choroid tiaraed