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.
mitt mott mity mutt matt mite matte motte motto moiety mat mot mid met mut mote mute moot maid meat modi moat mate meet mete maut meta midi matey meaty media medii middy motey