You can do this quite easily without content-aware fill or anything like it. I'd tackle this by doing the following:
create a rough shape for each tracking-point (the color doesn't matter)
track each point using the native after-effects tracker and apply the track to the corresponding shape.
All the shapes should now stick to their tracked point. Precompose ...
Replicating an accurate VHS-look is a complicated profession, but if you are not worried about the technical accuracy you could emulate it like this:
Create a solid called "Displace-Map"
Apply turbulent noise to it
set the scaling to something huge in the x-axis and something reasonable (100%) on the y-axis.
alt-click the stopwatch on "...