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.
brosy bros biros brows brios brose broos burros brassy browse barrows barrios bars burs bras borrows burrows bris buhrs boras braes biers bores byres bries birrs bares brees beers brays boors brass burrs buras boars brews bursa burse braws bears birse briss breezy bourse bursae braise boreas burghs barres buries bruise brughs borzoi hybris berries bewrays brassie bureaus bourrees
rosy prosy brosy kouros froes grows bros karroos eros horsy frowsy heros burros pros torous cheeros harrows troys drowsy pharos taros serosa farrows zeroes pursy vireos cerous morose broos churros charros trois toros hydros dross serows cirrous rerose barrios gyros jersey crows borrows proso biros brose karoos euros morrows pareos porose praos heresy barrows gorsy furrows burrows pross parous hearsay brows horsey roes arrows kaross rose morros narrows arose marrows proas guiros erose rows heroes kersey ferrous frows phoresy faros aurous prows vrows cross brios giros saros cirrose curios serous porous zeros pyros gyrose prose ceros gross hydrous tiros torose sorrows trios trows drossy tyros cheerios duros chiros yarrows