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.
granita granite grant grantee grand guaranty craniate grunt guarantee gurnet garnet coranto groaned currant kernite grandee crinite grained courant courante couranto crannied grind ground cornet carnet craned grenade crownet current crenate crinoid groined cornuto coronet grinned cornute greened
granita granite maranta uranite
gran crania garni grain grainy grana grannie granny groan