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.
mannose manse manos mannas mans minnows manus monos moans mains means meanness mense manas manes manias meanies minnies monoecy mons muns minas minis menus monas hymns mince minus miens mines moons munis muons mynas hymens menace mensae moneys monies mynahs meinies menisci
mannose nose noise noose nosey annoys venose genoise lanose minnows rennase tannoys winnows nos