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.
pyrolas pyrrols pyrroles payrolls proles prowls parols parlays paroles purls pyrolyze perillas pyrolize parolees pearls prills perils parles parlous parrals parrels prelacy peerless perilous purlieus parleys
pyrolas roles triols hydrolase drolls pyrrols carolus proles parols parlays rolls areolas aureolas broils ferulas variolas carols roils corollas growls morulas nerolis nerols neurulas paroles payrolls prowls pyrroles rerolls drools torulas trolls
pyrola parol parole parolee payroll prole prowl pyrrol pyrrole