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.
genius genus genies gens genoise genes genoas jennies gins hygienes jeans jinnis johnnies
genius nus finis beanies phonies peonies venues anis vinous nonuse bennies gnus conus ponies anus anise onus nous nisi ruinous gunnies heinous lenis menus johnnies tenuis shinnies sonnies shannies whinnies manias unaus tunnies danios toonies monies sanious tenias tennis meanies taenias pennies zanies minnies nannies loonies jennies bennis boonies jinnis bunnies lanais sanies heinies venus penis funnies fannies ranis aeneus goonies genus nuns ionise venous bonus pinnies genies ennuis hinnies lionise conies minis sinus lunies ninnies minus zinnias pennis tawnies meinies tenues tennies munis tonus townies denies unais weenies manus wienies sheenies xenias yonis
genie genii gen gene genoa genu genua gien agene