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.
perky perk porky peruke pricky park pork parka prick perique prig prog
jerky perky shrieky drecky darky zerk porky narky euroky perk murky rekey barky berk braky mirky reeky freaky jerk corky creaky quirky larky merk forky sarky darkey dorky turkey yerk
per pear peer peerie peery pere perea pereia peri perry pier aper apery opera