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.
messiahs messes missis massas missies meiosis missays mesas missus miosis mezuzah meioses masseuse misassay muses mises misos masas mezes maces mazes maizes masses mezuza mezzos mioses misses moseys mosses mouses musses
messiahs cassias quassias tussahs sis