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.
grained groaned grinned groined grand grind craned grantee cairned greened granite grandee crannied grant guarantee gurnet ground kirned garnet kerned corned crinoid crooned crinite granita crowned grenade craniate courante careened guaranty carinate grunt cornet carnet courant crenate crownet crunode currant coranto cornute kernite coronet
rained trained drained grained brained deraigned girned reearned cairned darned grinned brined araneid warned arraigned yarned learned ruined prawned earned reined reigned groaned kirned barned branned trined craned shrined groined yearned
grain grainy gran grin grana grannie granny groan groin