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.
prowls parols proles pyrrols pyrolas paroles purls pyrroles parolees payrolls pearls perils parles prills parlous parleys parlays parrels parrals peerless perillas perilous purlieus pyrolize pyrolyze paralyse prelacy paralyze
growls prowls areolas rolls roles carrioles creoles nerolis areoles orioles aureolas proles payrolls pyrolas pyrrols ceorls drawls drools triols whorls parols paroles roils crawls brawls broils variolas varioles carioles carols barlows carolus aureoles nerols reoils pyrroles rerolls darioles drolls trawls trolls shorls
prowl parol parole parolee prole pyrola