Several Japanese restaurants and Shochu bars offer Shiokara. Many have only the Industrial made variety, much like what you can buy in a jar in Japanese Supermarkets.
Brushstroke Izakaya excels in the Shiokara department.. I had the omakase meal once again and the second course was an assortment of 3 types of shiokara. a mild squid shiokara, a shrimp shiokara, a tofu with shiokara, also served was komochi konbu ( herring roe with kelp), and a crab meat with uni,
A while later I was served a very fermented and strong tasting ( which I love) ika shiokara with the squid ink. This was fantastic. This place really has terrific dishes and terrific sushi. I also had fried anago bones later on in the meal. Great place. Great sake and Shochu selection with a knowledgeable sommelier.