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.
shall shallow shell shawl shaul shoal shaly shill shale sheal chally challa shaley shoaly shelly challah challie shul sial sheol chill shily shool shiel shyly chalah chaleh chilli chilly cholla sheila
shall hall all really fall bally ball ally hell hyphal hull calla mall sally dually pally tally walla whale challa chill gally phial shaul sheal shill leally phalli lall call shawl pall hale maill hallo halo haul heal hill hail shaly gall shell rally ghyll sall dally tall wall wally wheal chally shale shoal
sha shah shaugh shaw shay shea pshaw