Connecting Humanity is a non-profit organisation which provides eSIMS to people in Gaza, allowing them to stay in contact with loved ones, continue their studies virtually, and post about their experiences and fundraisers online during internet outages.
Donating an eSIM is a very easy and inexpensive way to support people in Gaza - for example, donating a 1 GB Nomad eSIM only costs £3.32 (that's around $4.50, or €3.91), and can provide someone with internet access for about a week.
You can look at Connecting Humanity's instagram here! They have posts demonstrating how to purchase and donate an eSIM on their page.