All those sites look like news sites to me, except the Atlantic, which is indeed limited to opinion/commentary.
Salon's About page: "Salon covers breaking news, politics, entertainment, culture, and technology through investigative reporting, commentary, criticism, and provocative personal essays." A few titles from their site:
-As pandemic spreads, feds go MIA
-Did Steve Daines get pharma kickback?
-The second pandemic: Pollution
-Many Black, Latinx and poor Americans who needed relief the most never got a stimulus check: study
-Dr. Fauci says it's not "dreaming" that a coronavirus vaccine could arrive by 2021
-The COVID-19 downturn triggers jump in Medicaid enrollment
The Root has an explicit "News" section (theroot.com/c/news). Some titles from the site (not limited to that section):
-Jamaica's Supreme Court Rules That School Can Ban Child With Dreadlocks (No, We're Not Kidding)
-Protests Planned in St. Louis, Mo. After New Prosecutor Says He Won't Make Criminal Charges in Police Killing of Michael Brown
-Brooklyn Man Sentenced to 10 Years for Hate Crime Against Black Woman
-After a Summer of Social Media Trolling By Gen Z, Trump Says He's Going to Ban TikTok From America
-Rumored VP Candidate Rep. Karen Bass Explains Video of Her Praising Church of Scientology, Denounces Fidel Castro
-Michigan Appeals Court Grants Release of Black Girl Who Was Detained After Not Doing Online Homework
Vox:
-The slow-motion 2020 election disaster states are scrambling to prevent, explained
-The US ambassador to Brazil reportedly asked Brazilian officials to help Trump’s reelection
-Scientists have backed away from the worst-case climate scenario — and the best one too
-“The end of arms control as we know it”
-Polls: Biden and Trump are nearly tied in North Carolina and Georgia
-As coronavirus cases increase worldwide, an Australian state is imposing tough new restrictions
-Lawmakers still “not close” to a coronavirus stimulus deal, a day after $600 federal relief expired
Huffpost also has a "News" section (the most prominent of all). Some titles taken straight from their front page:
-Coronavirus Live Updates: Read The Latest About The COVID-19 Outbreak
-Top Health Official: Time To ‘Move On’ From Hydroxychloroquine Efficacy Claims
-College Athletes Threaten To Skip Season Over COVID-19, Racial Justice Demands
-Watchdog Calls For Probe Amid Fears Of ‘Voter Suppression Tactics’ Through Postal Service
-Thousands Ordered To Evacuate As Wildfires Scorch Southern California
-Navy SEALS Investigate Video Of Dogs Attacking Colin Kaepernick Stand-In
The very first section of Slate is titled "News & Politics". A few titles from that section:
-The US Takes On TikTok
-The Republican National Convention in Charlotte Will Be Closed to the Press
-Arizona Congressman Tests Positive for COVID-19, Blasts Republicans Who Don’t Wear Masks
-Hundreds of Coronavirus Infections at Georgia Camp Raise Tough Questions About Schools Reopening
-EU Extends Ban on Dangerous Foreign Travelers (Americans)
In sum, there's no way to claim these are not news sites.