For those interested in learning more about the culture of Japan and what it is like to visit Japan, these are two great Youtube channels. The Only in Japan channel has edited videos on specific themes and are very high quality. The Only in Japan Go channel is by the same Youtuber, but all of the videos are live streams from his life in Japan. I highly recommend both channels and enjoy watching the videos myself. The focus is more on Japanese culture, unique things about Japan, and things to do while visiting Japan, rather than martial arts like Karate or Aikido (although, there is a video on a naginata school).
Shane Sensei is a licensed Shidoshi in the Bujinkan and member of the Shidoshi-Kai. He has trained in the Bujinkan since 1998 and regularly travels to Japan for training.