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.
drank drink drunk trank dorneck dornick dornock trunk tranq daring drongo during dreeing turnkey deairing hydronic tyrannic
rank drank shrank crank frank prank brank trank franc shrink trunk parang wrang drunk prink cranky rink ourang prang drink tranq orang rang brink shrunk
darn deraign drain drawn drone durn tranny