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.
camo cameo cam came combo caeoma cambia cammie cum cwm gam game gamb gamy kame comb come gama kami coma gaum gambe gombo gammy gamma gamba gamay commy comma combe comae gumbo coomb gamey