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.
consol console consul counsel counselee conceal council cancel gunsel
consol anisole benzol ensoul hansel insole insoul console consul counsel gunsel mensal pensil tinsel tonsil
cons coons sconce cognize cognise icons icones coyness conus cans conns conies coneys cones coins canso scones