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.
doxie dexie doggies doux doxy deoxy dikes dagoes dickeys dex duckies dickies dioicous dexy digs docs dogs taxi
doxie moxie cosie cozie coxae nicoise nixie hypoxia pixie pyxie dexie