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.
maut mat mut moat matt mutt mate meat mute maud meaty matey matte mot mad met mud miaoued moot mete mite meet meta made mott mitt maid mote mity mead media motey motte motto muddy
beaut ghaut haut maut daut taut at ut