Improving C# skills in Grasshooper

Hey there,

Is there anyone who knows some good sources, tutorials, … on how to dive deeper into C# Scripting in Grasshopper?

I worked myself through the lecture series from the ICD [Part 1/6] C# Scripting and Plugin Development for Grasshopper - YouTube, what was really useful.
But maybe you experienced guys know some other good stuff :wink:
(e.g. does anyone have some experience with the courses from proarchitect)

I am mostly interrested in how to send data/geometry from Rhino Grasshopper to other Software (FE).

Thank you in advance and all the best,