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.
criollo cariole corolla carol krill grill carriole curial caroli creole grille cruelly gorilla carrell carl curl guerilla creel guerrilla cruel coral grail craal curly crawl carle growl carrel corral crawly curlew curule gorily growly