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.
born borne boron bourn boreen borane bourne bran brin burn barn bren brine burin barny brawn baron briny bruin brain buran bairn brown barren burnie barney barony briony browny brainy branny brawny byrnie baronne biriani brownie
born horn corn lorn morn porn sorn torn worn shorn