In my opinion this is why the Finder needs a major redesign. I always get jealous looking at other file managers like Files from Gnome 3, Dolphin from KDE or Pantheon Files from Elementary OS. They are very feature rich but still have a basic but efficient design.
I only know Files from Gnome 3 - however I am curious what you are missing?
It seems less functional to me in terms of lacking view options and grouping, quick look or a nice syntax for search like spotlight (kind:images).