Love Spinoza. I do not presume to fully understand his dense philosophy but from what I do understand Spinozism most closely expresses my own humble thinking.
A few of my humble thoughts:
Spinoza perceives conatus (negentropy, or syntropy, as anti-entropy) to describe what motivates the universe to organize and evolve: Conatus: An innate inclination of a thing to continue to exist and enhance itself. This "thing" may be mind, matter, or a combination of both. Conatus was central to Spinoza’s understanding of God.
Spinoza was not a pantheist or an atheist, more a cosmist long before the Russian cosmism movement of the late 19th century. Cosmism: the philosophical theory that the cosmos is a self-existent whole and was not created by a god or gods; the cosmos as self-existent and self-acting. Cosmism more precisely parallels Spinoza’s understanding of Substance.
I discovered Spinoza through Einstein’s famous quote; of far more relevance to me than his other famous quote.