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.
pricky prick perky porky pyric park perk pork prig parka peruke perique
pricky bricky tricky crick trick derrick prick mirky quirky crikey cracky crickey drecky hayrick brick wrick rocky rickey rick shrieky