motor position optical hall effect potentiometer motor positioning angle sensor

 motor position 

optical Optical Encoder

hall effect 

potentiometer 

motor positioning angle sensor

 motor position variable inductor  high-speed inductive
https://www.planetanalog.com/inductor-sensor-ic-boosts-accuracy-emc-for-ev-designs/

AS5715R Inductive Motor Control Position Sensor

JEGS LT1/LT4 Distributor Non-Vented Spline Drive Optical sensors

https://www.ctscorp.com/products/sensors-2/high-speed-position-sensors/ 

Standard Motor Steering Angle Sensors in Steering Systems