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.
mikron micron macron megaron macaroni macaroon migraine
mikron groin pickaroon negroni micron macron macaroni bicron kroon geocorona krone krona kirn kern karn decrown regrown carrion groan ligroin dacron recrown picaroon grown megaron macaroon bigaroon corona begroan crone crony croon crown garron decurion