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.
grabble gribble garble curable crabbily grubbily curably garboil gorbelly corbeille corbel corbeil
rabble brabble drabble grabble arable sharable barrable wearable bearable triable errable durable parable fribble rubble gribble marble hearable friable pourable hirable fireable dribble variable tearable hireable warble curable wirable garble shareable