1.  The Tao of React: Design, Architecture & Best Practices — The topic of 'best practices' is a perennially popular one in the React world with so many ways to approach each problem. So it's no surprise this post covering a variety of principles and attitudes for productively building resilient React apps for the long term went down so well.

Alex Kondov

2.  React Architecture: How to Structure and Organize a React Application — The theme from the item above continues here ;-) Tania is always fantastic at explaining things, so we really liked her approach to explaining project structure, and it seems you did too.

Tania Rascia

3.  Five Code Smells React Beginners Should Avoid — About to pull the trigger on your first big pull request for a high profile project? You should probably go through this checklist first. As an aside, if you're writing an article about React, this is the sort of headline that is catnip to readers, as long as you can deliver :-)

Jason Lee Hodges

4.  Top React Component Libraries (2021 Edition) — We're doing a separate list of top code and tools items below, but if you want a one-stop shop for component libraries, the folks at Retool released a 2021 update of their list of top React libraries.

Kevin White

5.  How To Write Better Functional Components in React — Five simple tips to help write optimized functional components that are more readable, each with its own sample code showcased with JSFiddle.

Bikash Paneru

Leva: A GUI Panel for React — A control panel that lets you set app properties via a nicely designed interface. Think useState but with a GUI. It just had an update a few days ago too and still actively developed :-)

David Bismut

Spectacle 7: A React and JSX-Based Presentation Library — Got a presentation coming up? Build your decks with JSX? A good way to get a feel for it is via the deck on its home page.

Formidable

React DnD 14.0: Utilities to Create Drag and Drop Interfaces — Build complex drag and drop interfaces while keeping your components decoupled.

Chris Trevino

REAFLOW: Node-Based Visualizations for React — If you have trees / diagrams of nodes to render and manipulate, this is an option. It’s best to hit up the demos to see how it works.

REAVIZ

useStateMachine: The ½KB State Machine Hook — It only makes sense to bundle a state machine into a hook. We have featured a number of Cassio’s videos in the past, so it’s no surprise there’s a video walkthrough with examples which illustrate its use.

Cassio Zen