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.
waygoing wagging waking wauking wigging whacking wicking
seagoing going waygoing gong wagging booking tagging bugging egging joking gagging pegging fugging vegging hagging fagging hoking hugging gigging zigging wigging fuguing looking shogging chugging fogging lagging legging locoing mogging cooking toking nagging poking ragging roguing rugging jigging legong cogging zagging leaguing sagging coking bigging begging voguing bogging dogging hogging hooking igging jagging jogging jugging figging logging cuckooing cooing tugging togging dugong digging rooking kegging rigging bagging pigging nogging mugging lugging choking shagging pugging yoking