[zeroprox]

It really depends on the programming languages that you're comfortable with. The biggest one that I personally would suggest is the .net ecosystem. You can use Xamarin to build your mobile apps, asp.net/asp.net core to build your web application/rest api, and a lot of the things that you're looking for can easily be added using nugets (.nets package manager) all by knowing C#. If you like single page applications look into https://blazor.net/ which is a pretty new SPA framework (still in early testing/concept) using C#/Web assembly on the front end. Like I said personally .net is one of my favorite stacks. The other is Django which is also a great framework for building web apps/apis. Recently I've been playing around with a web ecosystem in golang called Buffalo which seems pretty promising if you like go.