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.
mawn man mean many maun mown mano mana main mane moan manna mania meany meanie mun men mon menu myna mine moon hymn mina mien mini muni mono mony meno muon hymen meiny minae minny money monie moony mynah
awn fawn lawn mawn gnawn pawn sawn dawn shawn yawn an