There are several viable paths to cross Nietzsche, eastern philosophy and Buddhism.
For one, you could check out this scholarly work which interprets Nietzsche's Zarathustra through the lense of Zen: Nietzsche's Epic of the Soul: Thus Spoke Zarathustra
Secondly, you could identify chief tenets within Nietzsche's philosophy, and compare it to different strands of Buddhism. A chief tenet within Nietzsche's philosophy is Dionysian life-affirmation. Well, it just so happens to be the case that one strand of Buddhism has this same view. Tibetan Buddhism or Vajrayana. In my opinion, one of your best bets of crossing Nietzsche and Buddhism is through secular Vajrayana, and in particular Chogyam Trungpa's Shambhala teachings.
If you want the condensed version of this, I can recommend this article by John Welwood on befriending emotion: BEFRIENDING EMOTION: SELF-KNOWLEDGE AND TRANSFORMATION
>"The Lion's Roar is the fearless proclamation that any state of mind, including the emotions, is a workable situation .... Then the most powerful energies become absolutely workable rather than taking you over, because there is nothing to take over if you are not putting up any resistance .... Indian Ashokan art depicts the lion's roar with four lions looking in four directions, which symbolizes the idea of having no back."