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.
hominess homines hominies hamminess homeyness hominize hemins humanness haemins hambones humans humanise humanize
foaminess liminess hamminess riminess seaminess loaminess yumminess hominess roominess gumminess gaminess chumminess gemminess sameness numbness meinies imines romaines famines dimness mines nimbyness nominees dominoes domines combines tameness gameness meanness ammines commonness dumbness homeyness humanness lameness gamines diamines hominies amines demoness dominies domaines womanness homines