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.
legmen legman legumin
gagmen tegmen ragmen yeggmen bagmen legmen ragman yeggman acumen packmen socmen bagman skymen bookmen hegumen legman pygmean hackmen cowmen sagamen hegumene sockmen gagman sokemen pikemen tegumen hegumeny