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