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.
dicty dicta dicot dacoity dakoity duct ducat dacoit dakoit dicked diquat docket ticket tact
dicty gaiety kitty acuity biggity equity vacuity picot dacoity dakoity dicot dicta