These guys wrote an article on whether eating meat is good or bad. It's a product of Adversarial Collaboration. Very interesting idea where 2 people with opposing views on a particular subject write one piece together about that same subject.
The authors discuss the morals of killing animals by analyzing the consciousness each animal may have or not. Here: https://slatestarcodex.com/2019/12/11/acc-is-eating-meat-a-net-harm/