Source criticism is important.

Places that I go to get a quick summary of a news outlet's stances and how reliable of a source it is:

• newspapers that have won the Pulitzer Prize
• websites that have a short blurb on each news source, explaining whether they think that source is reliable or uses loaded language or whatnot:
  • Wikipedia's internal list of perennial sources — very short summary
  • AllSides.com's Media Bias Ratings
    • Includes the side-by-side examples of news feature.
  • MediaBiasFactCheck.com
  • Wikipedia — The top paragraph or two of a news outlet's Wikipedia article usually provides a quick and easy-to-read summary
  • Media Bias Chart — Using a 2D graph in place of complex explanations feels really reductive to me, but you still might find it to be a little useful?

Of course, there are various articles that explain how to do your own analysis of whether a source is reliable or not:

• Center for News Literacy, Stony Brook University
• Bridgewater State University
• Volunteer State Community College