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.
guideless godless gutless gateless codeless caudles cuddles guttles cadelles cuittles coddles cutlass cuttles kettles kittles coatless caudillos
fadeless guideless shadeless codeless tideless hideless deles noteless deedless dewless bodiless godless budless bedless poetless voteless dateless toeless rodless sodaless toadless woodless leadless mateless headless idealess lidless seedless roadless cadelles foodless needless heedless aidless tieless hoodless feetless gateless idlesse netless weedless chadless sheetless dels