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.
hock hoick hockey heck hook huck hack hick hoke howk hokku hooky hokey hooka hickie hickey hackie hackee hookey hookah hog hic haku hawk hike hogg haik hake huic haika haiku
bock hock jock cock lock mock knock nock pock rock sock dock chock shock yock