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.
curably curable crabbily corbel corbeil grabble gorbelly grubbily corbeille garble garboil gribble
bearably drably durably curably curable wirable horribly trebly hearable tearable hirable pourable parable marbly errable arable durable variably burbly terribly bearable wearable barrable sharable