Tablet holder

I have looked through all the satnav threads and have come to the conclusion its either going to be a 7in aguri
Or a lenovo tab 3 with copilot on it
If
I go for the tablet there is then the problem of mounting it in the cab so was wondering what holders people use
Im not worried about the suction part as will make something with a clamp as want it on the face of the dashboard but was wondering what people have thats good for actually holding the tablet securely whilst ists bouncing around