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.
rebody rebid rebato reboot rebought robed robot rebut rabid rabato rubied rubato rubbed ribbed robbed rebait rebate rubout rabbity rowboat
nobody body rebody bod bode boody abode buboed hoboed cuboid ceboid