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.
melton melodeon molten milden
melton dalton feuilleton glutton gluttony kiloton molten peloton platoon pluton soliton sultan
melty melt smelled malt malty meld melled melodia melody mewled meloid milt milty molt molto omelet omelette smelt