I don't think you can easily find Salmon Oyakodon in a restaurant.I "invented" this recipe following an idea we had with my wife in 2010 while eating sushi.
You will see this recipe is very simple and very quick to make. A bowl of rice, nori seaweed, a piece of salmon and eggs of the same fish.
I'm sure you'll like it
Keywords: Donburi, Oyakodon, salmon, salmon eggs, rice
Find it online: https://badlyyummy.com/en/sake-oyakodon/