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.
parolees paroles proles parles parols parleys pyrroles payrolls prowls pearls parlous parrals parlays parrels pyrolas pyrrols paralyse paralyze purlieus pyrolize pyrolyze peerless purls perils prills perilous
parolees roles areoles aureoles varioles girolles carioles carrioles creoles orioles orles paroles proles pyrroles darioles
parol parole parolee parlay parle parley payroll pearl pearly prole prowl pyrola