Daoisms history is very long. Depending on what you're interested in you may want to look into different time periods.
The Warring States period is where Daoism emerges as a rival of Confucianism and Mohism. The two masterpieces, The Daodejing and The Zhuangzi, are consolidated into writing around this time. Its emphasis on perspective, transformation, and effortless action also come out of this period. Some spiritual practices like breath meditation predate this, but as I understand it most spiritual / supernatural elements emerge much later.
If that's the period you're most interested in, here are the intro resources I'd recommend:
Daoisms history is very long. Depending on what you're interested in you may want to look into different time periods.
The Warring States period is where Daoism emerges as a rival of Confucianism and Mohism. The two masterpieces, The Daodejing and The Zhuangzi, are consolidated into writing around this time. Its emphasis on perspective, transformation, and effortless action also come out of this period. Some spiritual practices like breath meditation predate this, but as I understand it most spiritual / supernatural elements emerge much later.
If that's the period you're most interested in, here are the intro resources I'd recommend:
Chad Hansen has done good work contextualizing Daoism to its historical context. Here is one such lecture. He has also written an introductory article for the Stanford Encyclopedia of Philosophy and another for the Zhuangzi specifically
Brook Ziporyn also made a good introduction to the Daodejing.
Karyn Lai has a published lecture series on Chinese philosophy that covers Daoism and its rivals