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.
parols paroles parolees payrolls parles prowls pearls proles parrals parrels parlous parleys pyrolas parlays pyrrols purls paralyse pyrroles perils prills paralyze peerless perilous purlieus pyrolize pyrolyze perillas
carols nerols pyrrols parols carls parrels curls nurls arils hurls ferals jarls farles marls varioles corrals carolus drolls parles roles rerolls carioles girls harls carrioles sorrels churls whorls tirls darioles saurels byrls rolls pyrroles purls gnarls proles pearls broils areolas roils morels beryls areoles quarrels nerolis orioles trolls gorals merls furls whirls corals virls pyrolas ceorls laurels payrolls drools jurels barrels creoles prowls growls aureoles ferrels reoils birls parrals farls carles carrels zorils murals variolas goorals paroles orles orals arles aureolas herls aryls perils borals chorals morals birles merles earls knurls burls sorels dirls triols shorls
parol parole parolee parlay parle parley parral parrel payroll pearl pearly prole prowl pyrola sparely