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.
chummed chammied chimed shammed shimmed shammied shimmied shamed chamade
hummed summed gummed chummed bummed mummed mummied numbed chammied rammed tommed dammed gemmed bammed gammed fumed dumbed shimmed shammed lammed gaumed rimmed jammed nimmed jemmied jimmied dimmed hammed dummied hemmed whammed mimed shammied shimmied med