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.
pruta prutah protea port pert prat part prude purda prate purty perdu peart party proud pirouette pretty pyrite periti pardah parrot parity parade purity protei purdah perdue pirate parroty peridia pierrot proette yperite priedieu pard prod
pruta rut trout sorta kurta kraut grout cruet fruit errata brut brute bruit baryta aortae aorta rout rota prutah torta yurta