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.
muns munis muons mons mans mines monos manse moons mensa hymns minas minus manus mains miens minis manos manas mense mynas monas menus manes means moans moneys mensae mynahs mannas hymens monies manias mannose menisci minnies minnows meanies meinies meanness mince mincy
buns fauns funs huns guns muns nouns nuns puns runs suns duns tuns uns shuns