There is no risk in placing the Thermomix® TM31, TM5, and TM6 appliance next to an induction stove, as the magnet field is not going to affect the work of the Thermomix®.
You should not place your Thermomix® on a stove-top. As deciding where to place your Thermomix® consider a place where the device is not going to be close to extremely hot surfaces.