Console App (.Net Standard) not listed

It doesn't make sense to create a .NET Standard console app.

You can think of .NET Standard like you would an interface in C#. .NET Standard is an interface, then there's concrete implementations of it in .NET Framework, .NET Core and other platforms. .NET Standard makes sense for class libraries, but a console app needs to actually run on a specific concrete implementation.

Thus, there is no Visual Studio project template for .NET Standard console apps. You can create a console app for .NET Framework or .NET Core and then consume .NET Standard class libraries.