Anything tools- or infrastructure-related. Networking. Operating systems. Compilers. EDA. Education. Public transit. Government work. GIS. Embedded systems. Medical technology. Journalism. Space stuff. Games. There's tons of stuff. What do you love?

But I'm wondering how much not taking a "significant pay cut" is entering into your decision-making, because your list of things in the known universe is pretty narrow. If you decide you can't give up the salary, that's fine, but that's also your answer right there about how highly you value those aspects of your career. Or as The Onion put it, "Facebook Employees Explain Daily Struggle Of Trying To Care About Company's Unethical Practices When Gig So Cushy".