OSINT isn’t about Tools & Tricks, but more a way of thinking (outside the box too), understand what to collect next, connect the dots, solve the puzzle.
That takes wit, creativity, curiosity and the tenacity to keep looking, searching, digging, often in other directions.
Some entry points:
https://osintcurio.us/2020/01/16/introduction-to-osint-video/
https://twitter.com/Sector035/status/1211038518635614208
@quiztime
More:
osint.team
start.me/p/aLBELX/tutorials
osintframework.com
github.com/jivoi/awesome-osint
Follow (non-exhaustive):
@IntelTechniques
@OSINTtechniques
@WebBreacher
@nixintel