Django

Pros

• Backend: Django (you already know Python!) ... Django has built-in user auth and admin panel, perfect for managing volunteers/events.
• In order to build your app using Django, you'll leverage the complete development package right from the start: user authentication, username/password database structure, and an administrative control panel.
• I've mostly used Django for web dev so far with a couple social/e-commerce projects, and I could say I'm fairly comfortable with it.
• Once you are comfortable with React & Node, you might choose to learn TypeScript & Next.js, or Django if you are interested in Python.
• +1 for Django.

Cons

• Django is overkill and complicating your setup for this use case.
• I personally didn’t like Django but that’s probably because I’m not too much of a fan of interpreted languages.
• Guy below mentioned django as well. I've used it a bit, but the auth setup is a bit more work. And imo the framework isnt documented as well as Laravel. It's seems more like it's documented for maintainers, than for newcomers.
• Django seems a bit complex to start with.
• Even in *Django*, every line he delivers feels forced and unnatural.