Completely agree with the other commenter recommending Rails. It seems perfect for what you describe. I know of no other stack that comes close to it in product

Completely agree with the other commenter recommending Rails. It seems perfect for what you describe. I know of no other stack that comes close to it in productivity, and I've tried a few. With Turbolinks and Webpacker you get an SPA feel for free and it's easy to sprinkle in JS where needed.