I'm not an expert on any of this.
ICRC, International Committee of the Red Cross/Red Crescent
https://www.icrc.org/en/where-we-work/middle-east/israel-and-occupied-territories
Palestine Red Crescent Society
https://www.palestinercs.org/en
Doctors Without Borders/Medecins Sans Frontieres
https://www.doctorswithoutborders.org/latest/our-response-israel-gaza-war
That seems a bit lax.