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.
greave grave grieve grove gravy crave garvey groove carve graph grief curve corvee curvey griffe groovy coryphee
reave greave bereave grieve wherve grave trave crave serve carve parve verve nerve breve varve brave revue reive reeve rave pareve prevue drave wharve shrieve
gore gray gree grew grey grue agree ogre recarry wreaker