SPA: React or Next.js?
Trying to work out which is going to be easier to develop a dashboard for - want to be fast in development and not get stuck in too much abstraction
It also has a built-in router, instead of having to pull in an NPM package, as well as many optimizations to make your app faster (image, font, and script optimizations).
Some notes here if you're looking at migrating existing code versus starting from scratch: https://nextjs.org/docs/migrating/from-create-react-app