This video was my introduction. https://www.youtube.com/watch?v=3AKHjwvEufg
Derek Cabrera https://blog.cabreraresearch.org/jf
https://thesystemsthinker.com/introduction-to-systems-thinki...
You can dig deep into this stuff, I find it fascinating to see what others may not see through an understanding of how to visualize the problem as a system within a system.