Google has published some best practice advice for success in Google News.
Much it is very obvious, such as headlines and dates clarity, but there also reminders not to artificailly refresh stories, to avoid duplicate content, such as scraping, block written content, republishing permissions, and network republishing.
Transparency includes, authorship trust, and avoiding deception.
Link schemes are bad news, and Google makes a clear statement that schemes which sell PageRank are to be avoided.
Publishers should use structured data, in AMP and non-AMP pages.
It also goes on to recommend secure sites, with HTTPS.
You'll find the Google document here [
webmasters.googleblog.com...]