I went to a book site and grabbed some titles, newest first.
Only books by the likes of Tucker Carlson and Alan Dershowitz were omitted, as were books on how to prosecute Trump. These seem to address the "how" and "why", and some of the collateral damage.
How Autocrats Seek Power; Resistance to Trump and Trumpism, Richard L. Abel
Trump and Hitler: A Comparative Study in Lying, Henk De Berg
People vs. Donald Trump: An Inside Account, Mark Pomerantz
Tired of Winning : Donald Trump and the End of the Grand Old Party, Jonathan Karl
American Evangelicals for Trump: Dominion, Spiritual Warfare, and the End Times, André Gagné
Why Didn’t Evangelicals “See Him Coming”?: Donald J. Trump’s Deception and Dismantling of American Democracy, Paul A. Pomerville
The Origins and Development of the Destructive Politics of Trump and Trumpism: The Destructive Politics of American Fascism, Andrew Kolin
Tyranny from Plato to Trump: Fools, Sycophants, and Citizens, Andrew Fiala
Confidence Man: The Making of Donald Trump and the Breaking of America, Maggie Haberman
Revenge: How Donald Trump Weaponized the US Department of Justice Against His Critics, Michael Cohen
Trump and Mussolini: Images, Fake News, and Mass Media as Weapons in the Hands of Two Populists, Anna Camaiti Hostert, Enzo Antonio Cicchino