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.
monadic monodic maenadic mandioca mantic mendigo mannitic
vanadic gonadic maenadic monadic anodic enatic enneadic fanatic fundic venatic gonidic lunatic monodic syndic synodic
monad menad monde mondo monody mound