The Little One and I have finished reading the Wild Robot trilogy together and loved it.
They wanted a fourth or fifth book, and were very disappointed that it simply has not been written (yet at least).
So, pressed to find a new book to read together, I reached for the excellent Terry Pratchett and have started reading Truckers, first of the Bromeliad trilogy, which I remember adoring as a child.
We'll see how it goes.