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.
mynahs mynas minas monas manas manias mannas muns mans mons means moans minis manus mines moons miens menus manse munis manes hymns manos minus mains muons monos mense mensa mensae moneys hymens monies menace mannose meanies meinies menisci minnies minnows meanness
mynahs sunnahs kinas naos nays anas guanays anoas bunas annas nanas veenas pinas kinase kanas minas punas manias scenas lunas siennas lanais snaws sunnas zinnias donnas taenias tineas unais whenas hyaenas ruanas nonas goannas lianas cannas guanase hennas vinas genoas mynas hyponeas monas nans faunas mannas pinnas rennase saunas manas sennas quinoas sinhs guineas gnaws faenas xenias donas duennas tenias tunas unaus chinas hyenas