I really like Ranger Survival and Field Craft. He's active duty military with SERE training and civilian classes under his belt. It's not crazy stuff, just really practical and proven material.

There's tons of stuff I watch on YT but not a ton of survival content as there's only a few I feel are worth watching. Far North Bushcraft is great as well.

Not Only Bikes is a great video on urban planning and creating livable spaces. It's eye opening but really related to "preparedness" directly.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman