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.
grenade grandee crenate greened grind grand carronade ground grantee grained grinned groaned granita groined crunode carinate careened coronate grunt grant guarantee garnet corned craned gurnet kerned kirned cairned crinoid crooned crowned current granite
grenade serenade carronade crenate marinade serenate