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.
payroll parol pyrrol parole pyrola pyrrole parolee prowl prill pearl parle prole parral parrel perilla purl peril parlay parley pearly puerile purlieu
payroll roll brolly girolle corolla pyrola pyrrol reroll droll drolly troll trolly