AMR if the detection angle is within 180°. Select GMR or TMR if you want to detect 180° or more and 360° or less. If digital IF is required, it will be GMR.
If temperature resistance and current consumption are required more than GMR/AMR, there is no problem if TMR is selected. It is a product that can remove the internal amplifier because it has high temperature resistance, high magnetic resistance change, and high amplitude output.