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.
hila hilloa hili hula heil hail hill holla hillo hilly halloa hulloa holloa hallah helo hall haul hale howl holy heal hell halo heel hull hole hallo haole helio hello holey hollo holly hooly hoyle hullo