You can try looking for spg stories in local libraries. They often have a collection of various stories. Some independent bookstores might also carry books with spg stories.
Online platforms can be a good source. For example, some e - book websites may have spg stories available for purchase or even for free if they are in the public domain. Additionally, certain writing communities might have members sharing their own spg stories.
Another option is to ask friends or family who are into reading. They may be able to recommend specific books or collections that contain spg stories. You could also check with your school or university library if you are a student.