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.
haku haiku hack haik hake hawk hokku haika hawkey hackee hawkie hackie hag hug hick hike hock hoke hook howk huck heck huic hoick hokey hooka hooky