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.
poky pocky pokey pock poke peaky pawky picky pecky peak puke poco piki peke peek pack pick pike paik puck pika peck pekoe piggy pucka puggy pukka
hooky joky coky cooky gooky kooky nooky poky rooky choky