The first evening after installing a shader is where most survival players decide whether they will keep it, and it usually goes wrong in the same three ways. All three are settings rather than pack choices.
Night is darker than you remember. Vanilla Minecraft lights the world evenly enough that you can cross a field at midnight and see what is coming. Almost every pack on this list renders a genuinely dark night, which is more atmospheric and considerably more dangerous. Every one of them has a setting for it, usually called night brightness or ambient light, and raising it two notches is not cheating.
Torch light behaves differently. A torch under a shader has a falloff, so it lights a smaller circle more convincingly. In practice that means the spacing you used to keep mobs from spawning still works, because spawning follows the game's light level and not the shader's picture, but the room looks darker than the numbers say. Trust the game's rules rather than your eyes here.
Depth of field, if the pack has it, will hide the thing you are looking for. It blurs whatever is not at your focal distance, which in a fight is exactly where the next mob appears. Turn it off for survival and turn it back on when you want a screenshot. None of the ten packs on this page forces it on you.
Beyond that first night, two habits make a shader worth keeping in a long world. Set a lower render distance than you would run without a shader, because the pack has to light everything the game hands it, and eight to twelve chunks is plenty for a survival session. And check your base rather than a landscape when you compare packs: a storage room colour coded in wool, or a redstone build that relies on reading block colours, is where a heavy colour grade does damage that a screenshot of a sunset will never show you.
The packs on this page were picked with those two habits in mind. They keep block colours separable, none of them forces a blur, and every one of them holds a steady frame rate in a busy scene rather than only in a still one.