I think the complexity researchers over the years have created a wide range of tooling for analysing complex systems across a large number of domains.

Consider complexity economics, computational social sciences, network sciences and cascading networks, evolutionary theories, parts of systems biology, connectomics and computational neuroscience etc.

The Santa Fe institute has been at the forefront and has an amazing collections of publications in their own press. David krakaeur's book "Worlds Hidden in Plain Sight: The Evolving Idea of Complexity at the Santa Fe Institute" is like a 20 year survey paper and an amazing read.