Reddit mentions of Design Patterns in C#

I'd suggest you should pursue software development as a career path. Once you're working full time as a developer it will be much easier for you to move into a .NET role if you choose.

The career market can be hit or miss. There are plenty of jobs using those technologies but they're less ubiquitous than say Node or Java.

In terms of keeping up your skill, Pluralsight has some amazing content. And I'd recommend these books:

Design Patterns in C# - probably the first book I'd read.

CLR via C# - In-depth, targeted at professional developers, and absolutely crucial for anyone doing it professionally.

Agile Principles, Patterns, and Practices in C# - Will help get ready to work on a professional software development team with a slant towards Cc#.

Pragmatic Unit Testing in C# with NUnit - Also important for working as a professional C# developer.

More Effective C# - Is more of a specialist read. Might be helpful after you've worked for a year or two.

Framework Design Guidelines: Conventions, Idioms, and Patterns for Reusable .NET Libraries - Is better suited for a technical lead or architect. But could be useful to keep in your back pocket.