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.
eggnog egging
eggnog egging fogging figging fugging mogging pegging nagging pugging legging logging kegging sagging cogging rigging zigging jogging dogging igging tagging jagging tugging hagging wigging vegging shagging hogging fagging bugging rugging hugging bigging bogging begging mugging pigging nogging ragging legong lugging lagging zagging gang gagging digging jugging dugong gigging togging jigging wagging gong chugging bagging shogging