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.
idlesse idles idealess idealless idolise idealise idols idyls ideals idylls idolize idealize
idlesse bedless mateless beatless codeless idealess needless meatless noteless heedless hitless voteless roadless poetless rootless feetless seedless headless fatless dateless foodless tideless budless wattless bootless wheatless fadeless woodless godless shadeless lidless sheetless gutless bodiless dewless heatless leadless matless coatless gateless idealless netless knotless pitiless hideless hoodless hatless rodless puttyless seatless tieless tailless sodaless toeless deedless footless toadless toyless weedless aidless witless toolless chadless guideless shadowless matelasse shitless