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.
poetised poetized pietist peatiest pettiest pottiest poutiest putzed podesta
poetised daisied disced dissed batiste iodised caddised latticed noticed poetized
poetise poetize pieties poetess poets potsie potties peptize