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.
puttyless pettles pottles pitiless poetless puddles padles petals paddles peddles piddles poodles patellas patulous
puttyless heatless sheetless wheatless dateless seatless beatless pitiless netless meatless matless mateless gutless gateless coatless hitless hatless toyless voteless footless feetless fatless bootless knotless noteless poetless rootless styles wattless witless shitless