here are some verified charities (rated by charitywatch.org) helping palestinians. several of these organisations also provide aid to others in need, such as people suffering in ukraine & haiti. please donate if you're able to.
doctors without borders are an impartial humanitarian organisation providing medical assistance to palestinians in gaza.
project hope are working to deliver medical aid too, along with mental health support.
anera are delivering humanitarian aid (blankets, blood bags, mattresses, hygiene kits & food) to palestinians in gaza & the west bank.
world central kitchen have partnered with anera & have limited access to gaza via supply trucks to deliver water, food & food prep equipment.
muslim aid USA are working with their partners on the ground in gaza to deliver food packages, hygiene kits & medical equipment.