I haven’t seen a similar post on tumblr, but here’s a few places to donate money and find means to support those in Palestine-
Pious Project provides menstrual care kits as well as soap, shampoo, disinfectants, etc
Gaza Esims lets you donate Esims- these are used to connect to the internet and keep communication going in and out of the country
Operation Olive Branch is a spreadsheet of Gofundmes for families seeking funds to flee the country, each having a link to sponsor them
Here's a reading list from Decolonize Palestine
Stop Gaza Genocide is a google doc that is constantly updated, which includes how to contact representatives, how to protest, and various activist resources (US centric)
Samidoun provides a constantly updating calendar of protests, and you can submit ones not listed if there’s a protest happening near you (Global)
UNRWA and Care for Gaza are orgs that directly provide general aid and food
Lastly, while not inherently about Palestine, I do want to encourage everyone reading this that If you see a post regarding Palestine- a video, a photo, a livestream, a text post- Archive it with the Wayback Machine. When digital information is prone to deletion and censorship, we cannot afford to lose something as valuable as knowledge.