Well, if you have no idea of which problem to solve, I believe that nugget is still a thing. Every time I stumble upon someone that tells me that "all the problems have been solved" I tell them: check out https://nugget.one and let's talk again. If I recall, I stumbled upon that site when I was with Startup School. _^. Source: over 2 years ago

What to read? - Alchemy - Rory Sutherland - The choice factory - Richard Shotton - Contagious - Jonah Berger - Nudge - Richard H. Thaler - I also recommend my platform - https://kickstartsidehustle.com/brainiac/ - because it sums up over 150 cognitive biases, principles, and models along with another 100 frameworks, based on over 160 word-of-mouth/viral marketing case studies (the largest library on this topic). Source: almost 2 years ago

There are many resources like: - The choice factory - Richard Shotton - Alchemy - Rory Sutherland - I also share 140+ other biases on my website and my $0 Newsletter - https://kickstartsidehustle.com/brainiac/. Source: almost 2 years ago

You can join my free newsletter where I share psychology principles in marketing and viral marketing case studies. Source: over 2 years ago

If you're interested, here's my shamelessly promo of my website: https://kickstartsidehustle.com/brainiac/. Source: almost 3 years ago

I've started my paid newsletter in June 2020.I offered 12 (now 8) viral marketing case studies per month. Every study was a "Danny DeVito-size, with, viral & growth hack strategies, viral tools, viral psychology, just meat, no fluff". Source: about 3 years ago