You will need to choose the types of information that will best answer your research question. Not all information is created equal!
To find early coverage of current or past events, search the internet for tweets, media special reports, or newspaper articles.
Many magazines and newspapers provide access to their content online for free. Try searching for Time, Newsweek, or The New York Times.
Scholarly journals can be a little harder to find. Most journals will hide their content behind a pay-wall. Try searching in the Directory of Open Access Journals for free content, or use research databases from your library.
You don't have to go to Amazon and spend money on books. Google Books, Hathi Trust, and Internet Archive all have digitized academic books on many topics. And don't forget your library!
You can find federal governmental agency and legislative publications at the Catalog of U.S. Government Publications.