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.
mosso moss mossy mos mousse miss mozo miso mess muss moos moas mows mass mouse massy mosey masse moose massa meous meows moues mussy mousy missy messy miaous mousey miaows missay mas mis messiah mus maes masa maws mays mesa mews mise muse
mosso basso toss posse mossy moss loss loess lasso kusso kousso koss coss boss joss gesso fosse fossa foss bossy lossy cusso ossa doss whoso