If you haven’t read them yet, the “Hidden in Plain sight” series is a good read. Panned by many physicists, still thought provoking. The author aims to reconcile Einstein and quantum physics, also working from first principles. His notions also predict the intra-galactic motions without resort to dark matter, and the expansion observations without resort to dark energy. 99 cents a book, if you take them in “Kindle” form.
Thanks for the tip. I’ll have a look.