Tripod Stand:
The R-26 can be used with any standard tripod stand threaded with a 1/4” screw. The best place to find these would be online (e.g. Google search). You can search online for camera tripod stands and just be sure that the screw installed on the stand is a 1/4" screw--this is a standard screw size.
Microphone Stand:
The R-26 can also be used to mount to a mic stand using the OP-MSA1