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.
trickly trickily trickle trigly treacly truckle turrical darkly treacle darkle tergal
prickly trickly brickle freckly crackly prickle trickily trickle
trick trickie tricky toric track traik triac trike trock troika truck strick strike