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.
grant granite grantee granita grunt grand guaranty gurnet garnet guarantee courant groaned grained coranto grandee currant courante craniate couranto grind craned ground cornet carnet crownet coronet crenate crinite groined cornuto grinned grenade greened current cornute kernite carinate coronate crannied
rant courant hydrant arrant tyrant jurant brant warrant currant errant grant couranto brand errand grand runt horrent garnet cornet burnet rand variant rent riant print front coranto truant learnt grunt hornet brent gerent parent guaranty gurnet burnt carnet hairnet current maranta courante brunt torrent rerent forint warranty
gran grana grannie granny crane crania cranny garni grain grainy grin groan gurney