The healthiest salmon to eat is the Pacific salmon that is caught in the wild and not farmed.
Any salmon that is wild caught and not farmed salmon is healthier to eat.
Farmed salmon is okay to eat and healthy but when the salmon is wild caught it's much healthier for you and the Wild Caught Pacific Salmon is one of the healthiest and tastiest salmon to eat.
Atlantic Salmon is also pretty good for your health but since most Atlantic Salmon is farmed and not wild caught but even so it's still healthy to eat.
All salmon whether farmed or wild caught is healthy for you in moderation but eating too much salmon could cause mercury poisoning which can kill you.
But salmon does provide health benefits and may even prevent dementia or other diseases.