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.
pataca padauk poetic paddock
pataca tack taco taka attack viatica reattack retack stack
pat pate pattee pattie patty paty peat peaty pita spat spate