RxJS - Reactive Extensions for Javascript
Akka - Build powerful reactive, concurrent, and distributed applications in Java and Scala
react-context - Context provides a way to pass data through the component tree without having to pass props down manually at every level.
Dapr - Application and Data, Build, Test, Deploy, and Microservices Tools
vuex - Centralized State Management for Vue.js
MobX - Simple, scalable state management