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.
barony barny baron browny barney briony barn baronne boron briny bairn brown branny brawny brainy barren brownie bran bren burn brin born borne bourn brawn brine brain bruin buran burin borane boreen bourne burnie byrnie biriani
barony irony crony durion trona pyrone drone perron prion neuron hyperon marron moron krona kroon groin gurney cairny chorion ferny garron croon carrion browny crone corny gyron carny briony heroin hereon virion frown turion brown carney barney boron baron barny irone roan corona briny crown heron journey giron iron grown koruny horny groan krone maroon morion morrion neurone pereon porny prone diuron drown tourney trone whereon sharny
bar bro bare barre barrio barrow bear biro boar brio broo brow kbar