I entered the title of this post as a search phrase in Google, and here are some of the top results:
Indivisible.org: Defeat Trump Toolkit – This resource was created in January 2023, has suggestions for organizing events, recruiting group members, and links to other content at Indivisible.org.
DefeatTrump.org: Site created by Indivisible.org. Has a way to sign up for a mailing list, and more targeted resources.
A Citizen’s Guide to Beating Donald Trump: Published in March 2020 and written by Barack Obama’s campaign manager. Quote from the Amazon page: ” A playbook for the common citizen, A Citizen’s Guide to Beating Donald Trump addresses the many things individuals can do in 2020 every day, without having to leave their jobs, move to Iowa, or spend every waking moment on the election.”
Congressman Jerry Nadler: Some specific actions listed, slanted toward stopping Trump during his term as president.
The New Yorker: Nine Ways to Oppose Donald Trump – Written in December 2016 after the election, the article lists nine specific ways to help stop Trump from being successful in office.
The Guardian: “Election season has come. Here’s what you need to do to stop Trump from winning” – Written in September 2023, Robert Reich (former Secretary of Labor in the Clinton adminstration) has some advice/suggestions for getting involved.