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.
pirouette proette pirate protei pretty protea pierrot proud pruta preed prude prate perdue poured pureed pyrite paired parrot prutah pardee yperite parroty prat port prod part pert pared party peart perdu pored pride pried purty
pirouette burette curette proette