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.
ennuis aeneus ens aeneous eons aeons enows ensue
tenuis ennuis nus bonus boonies ruinous menus peonies pennies venous jinnis conies funnies beanies bennies bunnies tunnies sonnies quins bennis venus heinies hinnies genies tennis shinnies shannies unaus toonies onus tenias manias taenias danios minnies zanies loonies whinnies goonies genus meanies ponies monies lenis nannies aeneus sanies fannies nuns pennis phonies nisi anise lanais jennies gnus gunnies ionise genius vinous meinies nonuse conus anus heinous ninnies ranis anis manus johnnies nous venues munis lionise penis xenias minus denies zinnias finis tawnies ruins tenues sinus pinnies tonus townies lunies unais weenies tennies wienies sheenies minis yonis