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.
guttler cutler cutlery kittler cuddler godlier cuddlier goodlier coddler
battler bottler littler rattler mottler nettler shuttler tattler settler guttler kittler whittler motlier butler footler featlier tiler styler settlor staler cutlery taler outlier beetler butlery nettlier tootler cutler sutler