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.
garnet gurnet carnet grant grunt guaranty cornet guarantee grinned grained grantee granita groined cairned granite groaned greened grandee coronet crownet carinate careened grind grand carronade ground kirned corned craned kerned kernite currant courant cornuto crinite current crooned crowned crunode grenade cornute coranto courante couranto craniate crannied
burnet carnet cornet garnet hairnet hornet gurnet grunt darned print learned current corned gerent cairned warned earned turned jurant brunet grant front horned kerned girned mourned burnt rerent brunt crownet yarned hydrant churned errant arrant baronet torrent brent rennet reearned barned horrent learnt forint durned tyrant warrant courant coronet currant rent kirned brant parent burned sorned runt rant yearned
garni carn carney carnie carny garron gran grana grannie granny grin guarana guarani gurney karn