If you’re looking for one thing to help be productive, it’s probably Rails. If you just want to knock something out fast and aren’t really interested in web tech itself, Rails provides the fastest “time to usable website” of any framework I have personally used.
It’s not my favorite bit of web tech by any means (I really like Elixir/Phoenix and Clojure, and Rust is my bread and butter today) but I also don’t dislike it. I used rails in the past for rapid prototyping and it is pretty impressive just how fast you can get a working product with minimal learning.