Many folks are tech savvy enough to know how to do a GoFundMe or other kind of fundraising for a good cause. When there is an immediate need, there is often a local circle of giving. Some more popular online personalities and outreaches give to specific organizations (see Jennifer McLean's very inspiring initiatives abroad which partner with a Five Pillars Community Model, that helps bring clean water and food, healthcare and school services as well as basic housing etc to encourage a community to take root and be able to flourish.)
The Radiance Reignited email I got from Elisabeth Shaffer
