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.
gods gowds goads goods cods gads goddess goodies goats coeds gauds gadis quods gudes codes guids codas gouts guides gaddis gaudies goatees koodoos codeias cots kids guts cads gats cuds quids coots qaids coats kudus caids gates cades gaits cadis kotos kadis kudos gutsy qadis quads cotes
bods mods woods sods rods poods pods ods nods moods quods feods goods gods cods hoods hods foods roods tods yods