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.
sheetless shitless shadeless shuttles shadowless chadless
feetless poetless netless sheetless noteless rootless seedless coatless puttyless gateless toeless fatless pitiless bootless tideless hitless mateless witless fettles fadeless heedless heatless hatless voteless footless weedless gutless knotless nettles dateless beetles meatless mettles needless hideless idealess codeless guideless bedless pettles matless tieless kettles beatless dewless retiles seatless settles deedless wattless wheatless shadeless shitless