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.
mono mon moon mano muon meno mony mown moan money monie moony minnow mun man men maun myna mina muni mawn menu mane hymn many mana mien mini mean main mine hymen mania manna meany meiny minae minny mynah