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.
graved greaved groved craved gravid grooved gravida grieved graphed gravidae curved carved grivet gravity gruffed graphite graft corvet corvid cravat curvet kerfed corvette graffiti graffito
raved reaved bereaved greaved graved craved braved gravid reeved nerved rived proved varved derived grooved shrieved revved droved roved groved reived arrived served bravoed prevued grieved maravedi carved curved shrived
grave gravy crave garvey graph greave grove agrafe agraffe agrapha agraphia