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.
outtrick outrock outrig outargue
trick outtrick strick whitrack daturic yttric strike hysteric trock steric satiric citric derrick coatrack iatric hatrack vitric butyric truck retrack trike deuteric struck motoric nitric tricky neoteric outrock toric track traik triac satyric metric sheetrock
ottar otter outer outre outrow outthrew outthrow