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.
demoness daemones demons dimness daemons demonize dumbness demonise daimones demeans domines daimons dominies tameness domaines dominoes diamines damns deaminase deaminize damans diamins domains dominos damianas tomans
demoness moneys dumbness hominess daemones simonies sameness nimbyness liminess riminess monies ambones foaminess hambones hamminess chumminess umbones homeyness meanness lameness dimness daimones someones seaminess roominess loaminess numbness humanness gumminess gaminess gameness commonness gemminess womanness tameness yumminess