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.
hedonic heading heeding hoodooing hading hiding heating hooding hooting hotting
hedonic tonic atonic edenic photonic phytonic ketonic nudnick hypotonic diatonic