Love Borges.

In the sci-fi space I'd argue that Ursula K. Le Guin is another must read. She was heavily influenced by taoism (and eastern philosophy). When you approach her work with that in mind, it adds a whole new layer of depth to everything.

Could you share some tips where to start with him?

The most classical book is certainly "Fictions": https://en.wikipedia.org/wiki/Ficciones. One of the most known stories in it is "The library of Babel": https://en.wikipedia.org/wiki/The_Library_of_Babel