If you are interested in the lower level details of immunology and SARS-CoV-2, I recommend the lastest GigaOhm Biological's latest immune system and vaccine analysis with research papers starts roughly at 1h 35min mark. It's a good overview, although doesn't go to nitty-gritty details.
Explains :
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why the mRNA vaccines are failing ,and how this was known already 10+ years ago (because they don't give T and B cell immune memory)
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why the neutralizing antibodies are falling and why measuring antibodies in research papers for "vaccine efficacy" is a ruse
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why the natural immunity through COVID-19 illness is superior in many ways
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how the risk of airborn prion spreading is possible (Sars-CoV-2 has prion-like domain)
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how there has been plans for self-replicating mRNA vaccines that spread into surroundings has been a reality for some time now
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why they are still pushing more boosters and how they will fail
Jump there to learn the basics on why/how the vaccines are failing, how the virus is mutating and escaping immunity and why and how the natural immunity is superior (in time, in neutralization and in breadth):
^^^ this ^^^ - this guy is awesome.