I really appreciate this video series: https://www.youtube.com/playlist?list=PLIu1bD2jA4JMSJrieBJhqNC4owQxTVjfT

It's like those post-mortem analyses put out by work safety authorities, but specific to theme park ride accidents, without any of the sensationalism and with a lot of in-depth technical research.

(The newer videos clearly signpost upfront whether there will be accident footage/simulations, and at what timestamps; I don't remember whether that is also the case for older videos)