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.
bureaus buras boreas buries burs bras bursa brass boras bourrees bores burrs burse brews braes byres bries brees bears bares braws buhrs brays bourse barres brassy burros burghs bursae bewrays berries burrows bris bars bros birse biers brios boars briss birrs broos beers biros brace braze brows brosy brose boors braza browse braise breeze braize bruise brughs breezy hybris barrios barrows borrows brassie
bureaus reuse whereas ureas cereus areas aureus boreas ferreous crease creasy grease greasy morceau pareus praus rears uraeus urease choreas ras res