According to Porter (1980), "the state of competition in an industry depends on five basic competitive forces" (p.3).
The five forces are:
Porter, M. E. (1980). Competitive strategy: Techniques for analyzing industries and competitors. New York: The Free Press.
It may be possible to locate some ready-made Five Forces analysis reports in the Library's Business Source Complete database.
Select the Advanced Search option in Business Source Complete. Enter your industry in the first search box, and "five forces" in the second box. Note that these reports may come from magazine articles; you do not want to limit your search to scholarly/peer-reviewed journals.