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.
heal heel haul halo heil hell hail helo hall hale hallo helio hello halloa hallow hallah halloo hula hull howl hill hole holy hili hila hollo holly haole holla holey hilly hillo hoyle hooly hullo
feal veal wheal weal teal deal zoeal zeal seal real peal meal leal heal sheal al el