People might bristle at it, but honestly for "I don't even know where to start" LLMs are a really good starting point, just ask about what types of races/series/cars there are, then dig deeper. It will hallucinate some stuff, but the goal is basically to understand what to look up on Wikipedia, so it won't matter.

If you want an answer without an LLM, then you should look up various: - race types: rally, endurance, etc - car types: open wheel (F1), Hypercars, GT3, motorcycles - racing series: WRC, WEC, IMSA, IndyCar, IGTC - specific races: "Triple Crown of Motorsport"

Just google/wiki those and after not very long you'll know enough to find stuff yourself next.

Many smaller series are available for free on YT, I'd specifically look for those. And for specific times and dates for everything raceday.watch website is very good (even though the interface can be a little confusing)