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.
precut preact porrect hyperacute pricket precode parquet hyperacuity paroquet paraquat parakeet paraquet parkette parroket preguide parrakeet parked perked porked parkade percoid peruked pricked prigged progged parakite
precut recut circuit react recta recti recto erect foregut coerect haircut correct crewcut hyperacute porrect preact reerect direct