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.
prelaw parrel parlay purely pyrola perilla purl parol prole prill pearl peril parle prowl parral pearly poorly parley parole pyrrol parolee payroll puerile purlieu pyrrole
prelaw relay areola aureola borrelia virelai virelay terrella
pare pareo pareu pere perea pereia pore pree prey pure puree pyre spree