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.
neuks necks negus nukes negs nicks nocks nooks knacks knocks nocuous nookies nags nixe nogs
neuks yeuks pucks queues pekes reeks negus nukes mucks seeks wreaks sucks leaks leks cukes kecks pecks pukes ducks auks teaks beaks ukes jukes weeks bucks checks ecus chucks becks shucks yucks decks peeks zeks jauks recks necks aqueous lucks wrecks rucks souks keeks leeks jukus zouks gucks suks fecks dekes dukes geeks tucks jouks wauks hucks wekas hecks cheeks gecks sheiks peaks fucks ekes yuks