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.
wall wally walla wallah wallie wallow waly wawl weal well will wail wale waul whale wheal willy welly willie wellie wholly waylay willow woolly willowy weel wile wily wool wheel while whole wooly
all ball fall hall call gall lall mall pall sall tall wall shall al