4. Wasp (https://wasp-lang.dev) because it's the fastest way to build a full-stack React + NodeJS web app. You can build a prod ready proof of concept in a couple hours. E.g. Google OAuth2 is configurable in ~ 10 lines of code --> here's proof: https://youtube.com/shorts/-daNTYiUC64?feature=share

(disclaimer: I'm the guy in the Video :):):):):)