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.
meanness meanies manes means mannas meinies minnies mans mannose manas manse mains mines miens manus moans mense menus manos hymens manias menace monies moneys mensae minnows menisci mons muns mensa monas munis monos hymns minus moons minas muons minis mynas mynahs
vainness leanness wanness meanness dunness keenness ness ninnies gooeyness lioness bonnes bunnies nowness bennes nannies gneiss wryness woeness pannes pinnies hinnies donnees fewness funnies nines fannies nones shinnies feyness shinneys nonnews rawness joannes bennies nenes jennies minnies newness johnnies finesse tonnes whinnies shannies lowness pennies coyness sonnies dueness tennies tunnies gayness gunnies waeness shyness
mean manna meanie meany man men