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.
gambado gambade gamed gammadia gambit gammed gaumed gumboot gamut gamete gummed comade comedo combed combat cameoed gummata quomodo
gambado amadou gambade lambada rumbaed sambaed mad
gamba gama gamb gamay gambe gambia gamma agama gam