What are things you like ??
I could say read a book from one of the reams of famous german writers:
Lessing, Goethe, Schiller, Heine, Gebrüder Grimm, Fontane, Hesse
But the lyric is maybe not suited to present daily use.
However, I recommend you Hermann Hesse "Siddhartha" or Johann Wolfgang Goethe "Faust".