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.
pyrolyze pyrolize pyrroles paralyze proles pyrrols pyrolas paroles paralyse parolees payrolls prowls parles parols peerless purlieus purls pearls perils prills
pyrolyze hydrolyze creolize paralyze pyrolize
pyrola parol parole parolee payroll prole prowl pyrrol pyrrole