All recipes that call for shredded meat can be made with the following roasts or steaks:

Chuck roast, cross rib roast, bottom round roast, round steaks, tri-tip roast.

Place the roasts in a covered crock pot (do not sear or add any seasonings) and cook on low all day until meat shreds easily.  Or you can place in a covered pot and place in a 225 degrees F. oven.