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.
carvel caravel caravelle careful carefully carful gravel grovel gravely gravelly corrival crevalle
carvel marvel chervil drivel ravel reveal revel arval bravely ervil farfel caravel gravel gravely grovel larval serval surveil travel shrivel
carve carafe corvee crave curve curvey curvy garvey scarf scarify scarph