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.
grokked croaked crocked crooked carked corked cracked creaked cricked crocket quirked cragged cricket cricoid croquet
grokked corked troked rooked borked brooked forked frocked rocked crocked croaked crooked porked drouked trekked troaked trocked worked