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.
greened careened grinned groined grained groaned grind grand craned gurnet kirned corned garnet ground kerned cairned grenade crowned crooned grantee grandee crannied guarantee grant grunt cornet carnet coronet crenate crinoid crownet current granita granite
careened greened preened reined kerned