Safe fish to eat in Korea? (mercury level)

So does anyone know what types of fish are safe to eat around here?

I can't seem to find a place that sells wild salmon. And I'm trying to avoid eating farmed salmon.

I've been looking at this

but I'm guessing this list is not that relevant outside the US.

Any suggestions?

I not sure you can find natural-borned salmon around here

but you can always check out the place such as E-mart or Homeplus or COSTCO

Koreabridge