Kurama is the OPest, but hardest to tame

8 tails or 6 tails proly

Kurama or Gyuki ong

Shukaku due to magnet release

I would take 10 tails or 9

juubi just because i dont want to choose from the 9

Either shukaku or matatabi

Two tails

Maybe 4 tails or 7 tails

Six tails easily

Is katsuyu a descendant from the Six Tails?