Assuming that by Parenti you mean Inventing Reality, check out Roderic Day’s Masses, Elites, and Rebels: The Theory of “Brainwashing” which is in direct conversation with Inventing Reality and seeks to establish a different theory, radicalizing the most common view of how propaganda works with a materialist analysis. Sadly most of the analysis here is based on entertainment media, not news, but he does specifically talk about the news on a few points.

https://criticalresist.substack.com/p/independent-ngos-and-whitewashing

https://criticalresist.substack.com/p/cnns-clarissa-ward-stages-an-interview

https://criticalresist.substack.com/p/lesson-in-media-literacy-1

https://criticalresist.substack.com/p/the-blueprint-of-regime-change-operations

Here are some books by media analyst, Robert McChesney. I haven’t read all these. He actually died recently and when i found out, I just went and downloaded every book by him i could find R.I.P.

Capitalism in the Information Age: The Political Economy of the Global Communication Revolution

Dollarocracy: How the Money and Media Election Complex is Destroying America

The Death and Life of American Journalism

The Political Economy of Media

Will the Last Reporter Please Turn out the Lights? The Collapse of Journalism and What Can Be Done to Fix it

Here is a previously unpublished chapter of Monopoly Capital on the media: https://monthlyreview.org/articles/the-quality-of-monopoly-capitalist-society-culture-and-communications/