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.
combines communes cumins commonness commons cummins gamines gaminess gombeens commence communise communize gumminess gamins caimans camions caymans gameness kamaainas
combines famines symbions roominess riminess numbness gumminess loaminess mines gamines ambones amines ammines bambinos dumbness dominies chumminess domaines meinies hambones gemminess seaminess romaines pembinas nominees gaminess liminess imines hominies foaminess hominess homines hamminess dominoes domines umbones diamines yumminess