React isn't a framework
You use Angular, so you probably like frameworks. React and redux are not frameworks in the same sense as Angular. You can use React Redux Starter Kit and/or Redux CLI to get a React/Redux app set up with some sensible defaults, though.
Replacements for other parts of Angular
- Factories and services -- ES6 modules with Webpack
- Mocking modules (or in Angular, services or factories) in your tests -- babel-plugin-rewire
Understand the component lifecycle methods
Best resource I've found is Understanding the React Component Lifecycle
Get a good authentication library
I recommend redux-auth-wrapper.