Sardines seem consistently not to fall into your objections. Because they are low on the food chain, they don't have the same mercury and plastic issues as larg

Sardines seem consistently not to fall into your objections. Because they are low on the food chain, they don't have the same mercury and plastic issues as larger fish. I also have not seen strong evidence that they're in any danger from current fishing practices or that it is significantly impacting its predators. Sardines are pretty great