Need plug-in to unload 3D models for saleS

As you can see, there are a lot of sites for the sale of 3D models,
Naturally downloading to all sites takes a lot of time,
there’s probably commercial potential in that.
So far I have found such options
Sketchfab Blender addon v 1.2.2

Submitting model

Who else knows what, and maybe there is a convenience option?