One of the best things you can do when you are trying to find out where you should work is to learn about the leadership team. Specifically the CEO. The company culture always takes on the identity of the leadership team. It’s a trickle-down effect. Even if your direct manager is great and the kind of person you would love to work for, if they are under a certain pressure from their superiors to do things contradictory to their values, you’re going to feel the effects.
Next, and this still has to do with my first point, discover what the company cares about, does it align with your attitude toward work? Some companies are into hyper-growth, they’re numbers-driven and fast-moving. Does that sound interesting? Or, there are some that put other priorities above that like merely being profitable and creating a great place to work. These are probably less stressful, but also potentially more low-key and boring.
To each his own. But it’s up to you to first find your “own” then put in the research to make sure there is alignment.