¡Hola, Jaime!
I can help you with solutions to create a web dashboard application. We have developed a web framework that we are using to modernize our front end . The framework works on top on Rocket MVIS, and let's you create web applications easily and rapidly. In the browser side, Javascript and Bootstrap are used, so web applications run in every browser and are responsive in any device (desktops, tablets, smart phones). Authentication is done using OAuth 2.0, supporting Okta, Auth0, Azure and Google. The components of the web application are built using web tools, and all the web form's events are controlled from the MV server, so you don't need to learn javascript, .Net, or any new language, you just use BASIC.
The Google Maps integration allow you to embed Google Maps in the web application forms, and the Google Charts integration will be ready soon. The Google Charts integration will allow you to create MV server controlled Dashboards.
Finally, the framework has also tools to quickly implement RESTful APIs, automating the parsing and building of JSON objects.
Feel free to contact me if you want more information.
Saludos,
Enrique Murphy