I'm in the process of adjusting the final layout for my book and in particular, working on page breaks. Since I have quite a lot of images and tables it is (at least for me) much more difficult than working with only text.
I'm looking for tips and tools on how to approach this. One example is the attached images which cover 6 pages in the book. In the second picture, the right-hand page stops a bit early. I can't really change the placement of the table because it now lines up with the content of the text.
My best idea is to change the line spacing for the spread covering these two pages (left and right). I'm thinking that if it's not very much then the reader won't notice the difference betweens spreads - a difference between a right- and a left-hand page would be much more visible.
I am not sure where your problem is. Looking at the screenshots you share, it seems that if you want to control the flow/spread of your content, you are better off using images to push text down and control whetre it ends.
I would not recommend changing the line spacing, it is better to keep it consistent so you do not 'hurt' the readers eyes even if they do not notice what you have done.