There are many ways you can do motion track in After Effects, and the workflow and method you follow the nature of your clip, and what you want to track Such as Mask Tracker, Face tracker, 3D Camera Tracker and Point Tracker.

2. 1. Workflows of Motion Tracking
2. Mask Tracker
3. Face Tracker
4. 3D Camera Tracker
5. Point Tracker

3. There are many ways you can do motion
track in After Effects, and the workflow and
method you follow the nature of your clip,
and what you want to track.

5. Use of mask tracker to draw masks around
the object to track the certain objects in the
scene.
However, with Face Tracking, you can
track particular parts of the face such as
pupils, mouth, and nose, allowing you to
isolate and work on those facial features
with greater detail.

6. Simple mask tracking lets you quickly
apply effects only to a face, such as
selective color correction or blurring a
person’s face, and more.

7. Example, change colors of the eyes or
exaggerate mouth movements without
frame-by-frame adjustments.
Click on below Link: Motion Track in VFX
using After Effects
https://youtu.be/glsHBYwlYmU

8. Use the 3D camera tracker effect to
analyze the video sequences to extract the
camera motion and 3D scene data.
You can then correctly composite the 3D
elements over the 2D footage.

9. You can track one or multiple reference
features in a clip:

10. 1. One-Point Tracking:
Track a single reference pattern in a movie
clip to record the position data.

11. 2. Two-Point Tracking:
Track two reference patterns in a movie
clip and use the relationship between the
two tracked points to record position,
scale, and rotation data.

12. 3. Four-Point Tracking:
Track four reference patterns in a movie
clip to record position, scale, and rotation
data.
The four trackers analyze the relationship
between the four reference patterns, such
as corners of a picture frame or TV
monitor.

13. This data is applied to each corner of
image or clip to “pin” the clip so that it
appears locked in the picture frame or TV
monitor.

14. 4. Multiple-Point Tracking:
Track as many reference patterns in a clip
as you like.
You can manually add trackers to the
Analyze Motion and Stabilize behaviours.

15. When you apply a Track Points behaviour
from the Shape behaviours subcategory to
shape or mask, a tracker is automatically
assigned to each shape control point.