If you're referring to the Sardines, if you can handle the taste of room-temperature fish broth, drink the juice from the can, don't drain it. That's where most the omega-3 fatty acids end up from the cooking process.

Some of the better brands like what's found at Whole Foods here in CA will even include a notice on the package about not draining the liquid. The Henry & Lisa's stuff [1] in water is quite good, but can be relatively pricy.

[1] https://www.amazon.com/Henry-Lisas-Natural-Seafood-Sardines/...