If you have expensive equipment, get a good stable Tripod.
Do you shoot videos as well, then you will need which can do panning.
Do you shoot where there are strong winds at time, then you need something robust.
Do you need robust and light, then you will need something of carbon Fiber, Aluminium tripods.
Manfrotto Compact Light Aluminum Tripod, good and cheap.
But only you can decide your needs.
Cheers