if you haven't given this a look through yet, you might want to. i'll only list the offenses, but the site goes into detail and captures numerous sources spreading false info.
https://theintercept.com/2019/01/20/beyond-buzzfeed-the-10-worst-most-embarrassing-u-s-media-failures-on-the-trumprussia-story/10. RT Hacked Into and Took Over C-SPAN (Fortune)
9. Russian Hackers Invaded the U.S. Electricity Grid to Deny Vermonters Heat During the Winter (WashPost)
8. A New, Deranged, Anonymous Group Declares Mainstream Political Sites on the Left and Right to be Russian Propaganda Outlets and WashPost Touts its Report to Claim Massive Kremlin Infiltration of the Internet (WashPost)
7. Trump Aide Anthony Scaramucci is Involved in a Russian Hedge Fund Under Senate Investigation (CNN)
6. Russia Attacked U.S. “Diplomats” (i.e. Spies) at the Cuban Embassy Using a Super-Sophisticated Sonic Microwave Weapon (NBC/MSNBC/CIA)
5. Trump Created a Secret Internet Server to Covertly Communicate with a Russian Bank (Slate)
4. Paul Manafort Visited Julian Assange Three Times in the Ecuadorian Embassy and Nobody Noticed (Guardian/Luke Harding)
3. CNN Explicitly Lied About Lanny Davis Being Its Source – For a Story Whose Substance Was Also False: Cohen Would Testify that Trump Knew in Advance About the Trump Tower Meeting (CNN)
2. Robert Mueller Possesses Internal Emails and Witness Interviews Proving Trump Directed Cohen to Lie to Congress (BuzzFeed)
1. Donald Trump Jr. Was Offered Advanced Access to the WikiLeaks Email Archive (CNN/MSNBC)
my list would be a little different. some surrounding the false stories that enveloped barr near the reports release.