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.
verbile verbal variable verbally friable fribble fireable variably
verbile errable wirable warble terrible durable parboil hyperbole garboil curable corbeil gerbille gerbil horrible hirable hearable burble roble bearable barrable barbule arable ruble garble marble parable pourable tearable treble wearable sharable