I regularly listen to Tom Rosenbauer’s podcasts. The Q&A section up front is full of good tips and perspectives, and I also enjoy the interviews he does with various experts.
In the latest episode, he interviews Jesse Haller, a competitive angler who also does Euro-nymphing. It can be a bit technical, but there were some good gems in there.
And, as mentioned before, if you want to get a thorough and helpful overview of Euro-nymphing and indicator nymphing, George Daniel’s Dynamic Nymphing is the best one out there.