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.
manteaus mantes mantas manitus mantuas manitous manatees mannites montes mantis manats manitos minutes mentees maenads mantissa maundies maenades mints mounts mondes maunds minuets monades menudos monetize monetise monodies hymnodies mends minds menads monads mondos mounds
manteaus bandeaus bounteous chanteuse
manteau manat manatee maned manito manitou manitu manned manta mantua meant mentee moaned monte