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.
canals canalise canailles cannels canolas canulas canalize canellas cannolis cannulas gainless gunless gunnels kennels kinless quinols
annals hymnals canals finals vinals anlas anils nils biennales nalas gunnels pineals enols finales manuals annuals panels renails runnels denials tenails tunnels channels nonyls biennials nails anneals finials finalis phenyls hymeneals quinols kennels phenols annuls fennels menials vinyls cannels funnels ronnels snails dynels toenails unnails chunnels
canaille canal canella cannel cannily cannoli cannula cannulae canola canula canulae agnail