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.
mons moans moons muons monos monas moneys monies muns mans menus means mensa mines mense manse minus munis hymns miens minas minis manus mynas manes manas mains manos mynahs manias mensae hymens mannas mannose minnies minnows meanies monoecy menisci meinies meanness mince mincy
boons cons toons tauons zoons scions cions pons peons ons neons eons fons phons hons ions aeons goons paeons tons dons sons hysons poons pions noons coons muons moons mons loons lions kaons wons