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.
stuck stack stick stock sticky stocky stake steak steek stoic stoke stook stag
tuck stuck detick ducky tack tick attack bittock buttock geoduck duck mattock reattack retack stack stick stock futtock shtick