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.
huck hock heck huic hack hick hoick hackee hickie hackie hickey hockey hug hic hike howk hake hook haku hoke haik hawk haika haiku hokey hokku hooka hooky
buck fuck huck guck luck muck puck ruck suck duck tuck chuck shuck yuck