Jason Turner has hit a 200 informational videos on modern C++ features this Christmas season. He's a multiple time speaker at CppCon—the biggest C++ conference and does industrial trainings on C++. He just came up with a tutorial series on C++ available on his YouTube channel. I personally enjoy watching his C++ weekly series, but never am able to catch up will all the episodes anyway. I highly recommend any adept of programming in C++ to take a look and hopefully stay for longer.