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.
paroquet parquet paraquet paraquat parroket parakeet parkette parrakeet precut parked porrect pricket peruked precode parkade progged parakite preguide hyperacute perked porked preact hyperacuity
roquet croquet paroquet briquet paraquet parquet