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For outdoors with moving trees, leaves, PIR is the sensor of choice for warm intruders but are slow but perhaps reliable.

Pulse reflected IR with AGC Rx like those used for driveway lights which can detect far and wide easier for the slightest change in Rx levels.

Multiple pulse reflected paths being interrupted is another option but more critical in setup using narrowband emitter/detectors.

The Laser ToF looks powerful but depends on range you need.    Is this for more than 10 or 20 m or off walls in closer?

Ultrasound device sounds flaky with false alarms at far distances.

I think the old fashioned IR method is adequate for indoors, although I had once made one with VHF RF reflections back in the 70's up to 10 wavelengths using a directional coupler or splitter to a diode and uV signal change.