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.
tuck tack tick duck ducky tacky duckie tackey tug tic teak taka taco took dock toke tike tiki deck dick take duke tyke dicky tegua tikka togue tokay toque tuque
buck fuck huck guck luck muck puck ruck suck duck tuck chuck shuck yuck