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.
barny barney barony barn briny baron bairn brawny barren browny branny brainy briony baronne bran bren burn brin born boron brawn buran brain bourn bruin borne burin brine brown borane boreen bourne burnie byrnie biriani brownie
barny carny sharny varna garni baron barney barn bairn cairn airn cranny granny sharn barony karn learn reearn sarin tarn tranny warn yarn irony rainy branny koruny grainy gurney journey cairny carney earn brawny corny carn briny ferny horny porny saran darn tourney tyranny shairn crony brainy yearn
bar bare barre barrio barrow bear boar kbar