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.
monition munition mention mansion monecian moonshine moonshiny
monition punition munition lenition hyphenation zonation phonation ruination nation notion enation mention connation lunation nunnation pinnation venation lineation sinuation conation donation