Next JS
Next JS is a React framework that continues to push the boundaries for developer experience and what is possible with React applications.
Now owned by Vercel, a platform for hosting and deploying applications, Next has grown in adoption and features at an increasingly rapid pace.
I have used Next JS for client side applications, Server Side Rendered applications including recently with the app router and React Server Components, and as a static site generator.
Next provides a great environment for quickly developing web applications, though the rapid pace of experimental feature adoption can be a possible concern for stability.