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.
porky pork perky pricky park perk parka prick peruke prig prog
corky porky forky dorky quirky turkey darky cork dork perky darkey mirky fork larky euroky jerky croaky barky rooky rocky narky pork braky murky bork sarky work
poor poori pore pour aporia spore