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.
townies toonies tawnies townees towns tones tonnes tons tunnies tennies tawneys downs tonneaus tynes toons tines tunes tonus denies tauons tineas tenues tenuis tennis donees tenias donsie taenias donnees tuns dons tans tens tins deionize dinghies dawns donsy donas denes dynes teens dunes tains dines tunas tansy tense danios dienes donnas teensy tenace dueness dunness tannoys tenuous
tawnies townies ponies meinies boonies bunnies loonies fewness funnies sanies fannies lunies sonnies denies peonies pawnees heinies ninnies toonies newness phonies beanies wanes whinnies wines sheenies bennies rawness lowness sawneys monies pinnies meanies goonies conies gunnies jennies genies hinnies johnnies townees minnies pennies zanies nowness tawneys nines tennies nannies tunnies weenies wienies shannies shinnies
townie town toonie townee towny atonia ton