How can I remove the black man in this video? Content aware fill does not work

In theory, you could try to recreate each part of the image behind him using stills.  But the added complication of the handheld camera means you will struggle to get a good result.

But try this:

• Track the footage using the included Boris Mocha AE tracker.  For a position data track.
• Take stills from before and after he passes through the view.
• Use the tracking data to link these stills to the background, so they move with the wobble.
• Use his black shape as a track matte for the stills.  If that works, then you'll need to try fading or wiping between the two stills.

( Swear next time to include a helper to block people moving infront of the camera and use a tripod. 😂)