I have found some niche market where I could try to jump in. It is Active Directory tools for sysadmins.
Reasons why I like this idea:
1. Active Directory is a Windows product
2. Those tools are usual in the desktop software form
And it is all because my first programming experience started with Pascal and then Delphi framework. My first job was in the accounting software development company and I was developing lots of Windows forms.
I did research to find out if Delphi is good for this AD reporting tool and I found out that Visual Studio is much better. Because VS has already builtin Microsoft AD libraries and I found lots of information on the internet about how to use them.
So I downloaded VS 2015, and tried to create some Windows form applications and for surprise to me, all interface, controls, event system was very similar to my Delphi experience.