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.
rode rodeo rod roadeo roadie rood road rude rede rote ride rowdy wrote rotte route rediae red rot ret rad rid rudd rota rate roto raid rout redd rued reed read rete root redo rato roti rite riot rooty wried retie readd redia radii reata ruddy reedy radio write ready
bode geode code lode mode node ode rode diode de od