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.
mans manse manes manos manas moans means mains manus mannas manias muns mons meanies mannose minis miens moons meanness minas monos mines mensa mense munis minus menus mynas monas muons hymns monies moneys hymens mynahs mensae meinies menisci minnies minnows mince mincy
bans koans yeans wans deans sans pians pans nans fans vans jeans cans guans beans lauans queans leans loans mans means moans naans paeans peans roans dans tans weans yuans
man mana mane mania manna mano many