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