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.
couranto courant coranto courante currant cornet current coronet cornuto coronate guaranty coronoid craniate grant guarantee craned corned gurnet carnet cornute crenate crinite crownet granite grantee granita carinate crannied grand grunt garnet ground
couranto coranto rant currant warrant courante truant courant pronto cornuto guaranty grant hornito jurant variant errant brant arrant riant maranta hydrant tyrant warranty