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