is the product in the same place in relation to the horizontal line in the second shoot as in the first? Or are you just needing to move the line itself?
Great example with the yellow and blue bowls.
Unfortunately, there is no easy way to do this in Lightroom. Partly because cropping in LR is an unexact process.
My first thought is to pull all the images into Photoshop as layers, align them, crop them, then separate the layers.
Multiple better ideas would not surprise me.
It will be a manual process in Lightroom.
My thought might be to use Auto-sync to apply a crop to each photo.
Then switch auto-sync off, and select each photo singly and move it up/down to place the 'table horizon' line in the same place of the crop frame. [ O ] will change the overlay grid lines for visual alignment.
It will not be exact but 'close' visually.
Thank for the examples. Here is what i think, if all your second shoot is identical; i.e. camera on the tripod and only changing out the product, to have the horizontal line in the same location, you would have to manually crop the second shoot photo to match the first shoot. Just like wobertc said. But i think if you then sync the crop to of the first image to of he second shoot to the rest then it should work out for you. There might be a few you need to manually tweak, but that s better than doing it all manually.
Keep in mind that will not change the point of view of the image. The second shoot, the camera was higher and Lightroom can't change that.
Hope that helps.