Instrument stands should be stable and not damage the bore. There are several quite heavy wooden and metal stands available, which offer good stability. This is especially useful in ensemble playing where other players passing by could accidentally knock the instrument over.
In general, a stand with a larger, heavier base will offer greater stability.
Spider leg stands from Germany have proven to be very stable, reliable and inexpensive.
Important: No woodwind instrument should be put onto a stand with its keys showing to the ground. Water will run into the tone holes and causes unnecessary trouble and wear. (often seen on bass clarinets)