Some library databases offer full text, indexing, and ready citations for industry trade journals, including Variety, Hollywood Reporter, and Broadcasting & Cable. You can pull up results on topics using regular keywords or the controlled subject headings specific to those databases.
For access to Variety specifically, try:
Film and Television Literature Index with Full Text: 1999-present.
Entertainment Industry Magazine Archive - 1905-2000.
Luminate FIlm & TV provides up-to-date information on companies in the entertainment industry, org charts, industry contacts, and tracking productions in development.
Contact James Steffen for access.
The business database Factiva is a good starting point for researching individual companies and broader trends within the contemporary entertainment industry.
Citation: Factiva does not offer a tool to generate citations, unlike some other academic databases. You will have to create a citation yourself according to your citation style's rules for citing websites or electronic resources. Sample:
"The Walt Disney Company. Company Snapshot." Factiva, https://global-factiva-com.proxy.library.emory.edu/pcs/default.aspx?napc=K&f=DSNYW&fcpil=en. Accessed September 24, 2019.
If you are citing trade newspaper articles, just use the standard rules for citing newspaper articles.