If you wish to practice "exercises", I sugest the exercises of Liszt (free download) but with a great care to avoid tension. Scales, harps, thirds, etc.. "Gradus ad parnassum" (Clementi) and/or Czerny...
This is the traditional approach to "learning" piano.
There is another approach: why to spend time with scales and harps, if you have a lot of sonatinas and sonatas from the classical period where you may play a lot of scales and harps? why to spend time with cord jumps in technical exercises if you have the same jumps in the romantics?
For a begginer, I supose that it is important to play some exercises (scales, harps, etc...). But when one has already some technical support, it`s far better to play Bach (littler preludes, Inventions...), Clementi, Diabelli, Kulack, Mozart... and after this Beethoven, Schuman, Chopin... and allways Bach...
But this is only what I think...