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.
shaly shoaly shaley shawl shoal shale shyly sheal shall shaul shily shelly chally shul shallow sial shell sheol shill shiel shool chalah chaleh challa chilly sheila challah challie
shaly hale mealy pally bialy hyphal gayly vealy hail phial whale chally shaley wally halo dually shawl daily shily really shoaly rally bally ally wheal leally muhly gaily coaly gally heal haul holy waly shale hall tally shall dally shaul sally sheal rawly shoal paly shyly
sha shah shaugh shaw shay shea pshaw