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.
parroket parrakeet parkette parakeet paroquet parked parkade pricket parquet porrect parakite paraquet perked porked precut peruked precode pricked progged paraquat preact
parroket rocket brocket crocket market troked