A bit, uncommon topic, dog food brands in Japan, specially for mame shibas

Hello, long story short, let's talk about dog food brands here in Japan.

It will be my first time owning a doge in Japan; therefore, I have been learning a lot of new things related to that topic here in Japan…

Now, dog food brands, I have seen Royal Canin, also Hills… 2 wellknown brands, but they are pretty expensive (everywhere).
Also read about Best Balance, seems to be the standard one; not too bad and not super good…

Any Shiba or Mame Shiba owners around here? What are you feeding your little doges?
Any brand that I should avoid at all costs? And, even if expensive, which is the best brand to use?
Lastly, read that with Shibas it is more of a `feed them what you manage them to eat` thing. Is that really something that happens too often?
Thank you!

by -Kitsune506