There are many great sources of OSINT tips and training online now. From the OSINT RocketChat to the OSINT Framework to Technisette’s great list of resources… and very many more. But something new is a coalition of OSINT professionals into a loose group called OSINTCurious. OSINTCurious hosts a biweekly live webcast (which is also broadcast as a podcast), a series of 10-minute videos and a blog.
Our own Kirby Plessas is a member of OSINTCurious, and you can read up on the other members on the website.