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.
gamy gamay gammy gamey gam game gaum gamb gama gamba gamma gummy gambe gambia cam gum goombay came camo kame kami cameo commy gombo gumbo gumma
beamy foamy gamy loamy seamy my am