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.
stocky stock sticky stick stack stoic stoke stook stuck sodic stake steak steek staggy
stocky dickey shaddock stock ruddock redock piddock paddock mattock haddock buttock dicky bittock tokay tacky tackey ducky dock sticky futtock shticky