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.
rick wrick rickey rock rack reck ruck wreck rocky wrack roc rig rec rook ryke reek raku rake raki rakee reeky rekey rooky wreak
hick hoick ick kick quick lick mick nick pick rick wrick sick dick tick wick chick