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.
barque baroque brogue bark barca baric barky brake broke burke burqa berake birkie barrack brookie
barque marque cirque torque roque argue baroque marquee morgue perique peruke piroque reargue charqui
bar bare barre barrio barrow bear boar kbar