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.
menus mense miens mensa minus manus means mensae hymens menisci meinies muns mans mons meanies meanness hymns monas monos manos manas mains munis manes moons minis moans mines muons minas mynas manias mannas menace moneys monies mynahs minnies minnows
venus genus menus nus ens venues faenas hens benes genius onus hygienes bonus vinous beans heinous jeans paeons nous foehns peens gnus kens veenas venous wrens veins aeneous peins eons tonus yeans hyaenas tense whens wheens scenas weensy weans manus sinus genes tenuis conus teensy peons dens dienes anus deans lenos sensa minus nuns bens rouens reins neons pens means mensa scenes aeons cense miens nonuse keens liens peans lenis queens fens lenes lens paeans penis queans gens ennuis aeneus denes lense penes hyphens hymens ruinous leans mense sense kenos nenes dense zeins teens tens tenues tonneaus unaus weens wens whenas sheens hyenas yens
menu men mean meanie meany meinie meiny meno mien amen omen