Well of course I recommend all of them! But this is where I put ones I especially like.
The Rise of the 5th Regime Yamaguchi Yakuza Family
Kendo 8th dan: Passing Japan’s Hardest Test
Looking for the Genetic Roots of the Japanese: South Americans and Ainu (1 hr. long)
Homeland Bound: Returning to North Korea
The Endless Tragedy of a People: The Vietnamese and Cambodians
3 Generations of Life as a Zainichi Korean
Jibin Wong, 19. So Kan, 26. Life as a Foreign Chinese Student in Japan