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.
gametes gamuts gambits gummites gambades gambadoes comets comtes gomutis comates commutes comedies gambados comities gumboots gummatous committees combats comedos commits
metes gametes moieties mates mites metis meets meeds comates meats hamates fumets mutes limites maumets ramets remeets roomettes samites somites demotes gemmates motes boehmites commutes emmets emotes fomites fumettes humates gemotes emeutes comets bimbettes comtes gummites mammets nimieties remates remotes roommates smites summates teammates
gamete gamed gammed gamut gaumed agamete