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.
messan mesne meson mission mason mizen mizzen miocene muezzin
gossan messan resawn paisana sain sane sawn asana fusain hessian caisson quassin lessen lesson paesan paesani paesano paisan paisano tisane
mess messiah messy emes muss maes mass massa masse massy mesa mews missy moss mosso mossy miss mussy missay mems