Spin offs that would be better than Gaiden

[SenseiSama]

Hago and Hamura's childhood

 

[Legendary Toad Sage]

I would love some jinchūriki spin-offs, not just a few filler episodes dedicated to them.

 

[Lariatoo]

Would really like to see both the period of Hiruzen and Danzo as teens in the age of Shinobi Wars (with Tobirama's as Hokage) and definitly a "Sannin Gaiden" of sorts.