Is a good source for “traditional” web development?

All my professional experience since college has been React SPAs and I’m interested in learning a more old school approach through a side project with server side rendered html.

To give an idea of what I mean, I’m talking about things like using an html form with inputs and a submit button to send data back to the server as opposed to controlled react inputs and a POST request. Then redirecting after that form submission by returning a 303 response rather than reading the POST response and using whatever method the routing library wants you to use.

Basically I’m looking for ways that I can leverage the built in capabilities of the browser or http spec to accomplish things rather than doing it all in JavaScript like I learned through react. I can find these things in isolation, or through specific searches, but if there’s any resources for “proper” or “traditional” web development that aggregates these sorts of best practices I’d appreciate it.