Selection to Auto Liquify Scripts

[Thiha31203570tbl0]

I have a subject and a selection in Photoshop. The selection is very close to the subject but not perfectly aligned—there are slight mismatches around the edges.

Is there any script or automated method (like an Auto Liquify script) that can deform or adjust the subject to match the selection exactly? Ideally, I’m looking for a way to warp or reshape the subject so it conforms precisely to the selection boundaries.

Any suggestions, plugins, or scripting approaches would be appreciated. Thank you!

[c.pfaffenbichler]

I expect it should (in theory) be posssible to approach that with some form of AI but I am not aware of any meaningful current implementation. 

What is the actual workflow?

Why not do the reshaping manually? 

Maybe more importantly: Why not create a proper selection/mask for the object in the actual image?