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.
tricker trickery trickier tracker trucker trekker trigger darker trocar dorkier torquer draggier dreggier druggier turgor dragger
pricker tricker shirker trucker racker rocker rockery rockier wrecker barracker brickier cracker crockery mirker prickier tracker trickery trickier chirker shrieker
trick trickie tricky toric track traik triac trike trock troika truck strick strike