When making shredded beef in the slow cooker, it’s best to use an inexpensive cut of beef like chuck roast, shoulder, or blade roast. Although they’re traditionally tougher, they respond really well to the long cooking time and come out of the crockpot deliciously tender and juicy!  If you want to make it a little fancier, you can use beef brisket or short ribs instead. These are a little more expensive and have a little more fat on them, but have amazing flavor.