Frontend: - Framework: Vue/React + VueX/Redux - JS Flavor: Typescript - CSS: SASS - Server: NGinx

Backend: - Language: Go, C# (.Net Core) or Rust - Database: Postgres. (Redis if needed)

Deployment: - Kubernetes or in simple cases a Unix based server running Docker. - CI: GitLab CI and/or Drone.io - Hosting: Google Cloud, AWS or Digital Ocean

Personally I stay away from Windows Servers, Standard .NET and MSSQL when possible.