Its not inexpensive, but I have had my eye on the Roku suit for a while.
It’'s real motion capture. Meaning you arent going to loose tracking of an arm when it is hidden from a camera.
If you are tech savvy you could build your own too, they have projects and components to buy (it’s way more bulky in the end). The price of doing that would be about half but it will cost you 3 times more in amount of time and interfacing the components correctly into the raspberry py to store the data…
that said I have tried even with multiple kinects and professional mocap software. The cleanup afterwards is almost as much if not more work then just making the animation from scratch.
that’s precisely why I ended up developing my blender addon in the end. (It also help with the cleaner up).