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.
shrunk shrink shrank sharing shoring shearing sheering shirring showring choring charing chronic chairing charring cheering chirring choiring churring
drunk trunk shrunk rank rink rung wrung brank brink shrank brung crank prank prink drank drink trank shrink frank
sharn sharny shoran shorn shrine