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.
pere perea per pereia peerie pear pure pier pree pore pare pyre peri prey peer pareu perry puree hyper pareo peery pur pry pro par prow puri proa prao prau pair para poor pray pour purr parr pyro parae parry poori
ere fere here quaere mere pere cere sere dere were where re er