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.
truckle trickle treacle trickly trickily darkle treacly turrical darkly tergal trigly douroucouli draggle
truckle ruckle rackle brickle freckle crackle grackle prickle trickle
truck track trick trickie tricky trock struck