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.
gravid gravida gravidae graved gravity greaved groved craved corvid graphed grieved grooved graffito graphite graffiti graft grift carved cravat curved grivet gruffed
gravid raved reaved bereaved braved fervid corvid craved graved gravida greaved provide cervid
grave gravy crave garvey graph greave grove agrafe agraffe agrapha agraphia