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.
manitous manitus manitos mantuas mannites manteaus mantes mantis manats mantas mantissa maundies manatees mints montes mounds mondos maunds mounts maenads menudos mentees mehndis minuets minutes maenades monodies monetise hymnodies mends minds menads monads mondes
manitous boniatos bonitoes bonitos bounteous manitos manitus pintos tinnitus
manito manitou manitu manat manatee mannite manta manteau mantua meant amanita