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.
rede red rediae rued ride rode reed redo redd read rude rete readd reedy wried retie redia ready rodeo roadeo rid ret rad rod rate road rote rudd raid rite rood rowdy write ruddy radii route rotte reata radio wrote