Tablet stands come in two broad styles. The right one depends on where you use it.
Foldable tablet stands
Best for travel and small desks. They collapse flat and weigh little. Trade-off: slightly less rigid than a fixed base.
Non-foldable tablet stands
Best for studios and bedside use. Heavier, rock-solid, and often adjustable in more axes.

Travel a lot? Choose foldable.
Fixed desk or studio? Choose non-foldable.