As we know, Microsoft has stopped manufacturing Kinect cameras. Do you know other cameras which can be used instead of Kinect to detect a hand in 3-D world?
The previous week Microsoft in Build 2018 exhibited a version of Kinect for IoT held in Azure. It is about kinect as an intelligent resource that can be an agent in a system.
Orbbec Astra could be a good option. You can check out their website for details. They also have a skeletal tracking system similar to Kinect available if that is what you are looking for.