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.
croquet croquette crocket coerect crocked crooked cricket crewcut correct croaked crocoite corrugate carked corked cracked cragged creaked cricked cricoid grokked quirked
roquet croquet paroquet briquet paraquet parquet