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.
parakeet parrakeet parakite paraquet parkette parroket parked pricket parkade parquet paraquat paroquet perked porked precut peruked porrect precode pricked preguide hyperacute preact hyperacuity
parakeet parrakeet racket bracket lorikeet market