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.
misassay missays massas missus missis misses missies misease mises misos masas mesas miosis misuse mioses masses meioses masseuse messiahs muses maizes messes moseys mosses mouses musses
misassay sassy assays bioassays essays massas missays
miss missay missy amias amiss mas mis