Even the youtube survivalists and preppers who appear to be experts disagree on what items are important to survival. You need to become your own expert. Only you know what is most important to you. Bear that in mind as you watch and you will enjoy it a lot more.
There are enough different survival kits on youtube to thoroughly confuse you, if you let it happen. I suggest, that if you want to look at some or all of them, that you consider that some of them may not have a high level of expertise.
There are many more survival/preparedness experts than can be found on youtube. I am partial to some of the Native American experts on survival who do not appear on youtube. These are beginning to show up on youtube as well, however. Traditional Native American youtube. :-)
Here is one of my favorite survival experts. Some of the reasons I like him are that he is very honest and real. He also clearly enjoys what he shows us. This makes his videos fun to watch. He usually has a different approach to things. Even if you don't want to exactly follow what he does, you can learn whatever you want to do from watching him. He often adds little asides that might save your life some day. It is a good idea to watch his videos more than once and pay very close attention.
Here is his youtube name: Reallybigmonkey1
His Channel on youtube is:
Fun In The Woods
He currently has 60 videos on his channel. I have not seen all of them yet, but I plan to. I like to take notes on his videos and practice what I learn from him.
Another site that I really like is Native Tech. This site is so big and has so much good information, that it can be overwhelming. You can avoid being overwhelmed by picking the kind of information that you are looking for, to use right now, and studying only that kind of information. Later you can pick another subject and do the same thing.
The authors on Native Tech usually have survival skills for using handmade tools and equipment. Their survival skills have been handed down and refined for many generations.
It is like getting a university education in survival, by using these sites and others like them. We are very fortunate to have the opportunity to use these sites now. Use them while you can.