Free Palestine.
Here are some places to donate to or resources for learning more -
Palestinian Children's Relief Fund - https://www.pcrf.net/
eSims for Gaza - https://gazaesims.com/
Boycott, Divestment, Sanctions - https://bdsmovement.net/
Haymarket Books, who have a couple free ebooks about Palestine. - https://www.haymarketbooks.org/blogs/500-free-e-book-from-the-river-to-the-sea