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.
branny brawny brainy bran briny brain barny buran brawn barney barony browny briony borane baronne biriani brin barn bren burn born bourn burin baron bruin brown borne bairn brine boron barren boreen bourne burnie byrnie brownie
branny cranny granny tranny tyranny rainy runny barny brainy brawny carny grainy sharny