2021 Part 107! My thoughts!
Some videos to help you pass the exam.
Start with Tony Northrup to get a good overall knowledge: • FREE Drone Certification Study Guide: FAA ...
This video is from Feb 2017, so don't stop there because it is dated.
Next, go to Altitude University: • FAA Part 107 Study Guide: Drone Certificat...
Altitude University has much of the same information, but was released Dec 2020.
Last, but certainly not least, visit Katia's Buzz: • FREE DRONE PILOT FAA Part 107 Study Guide....
This is the most recent of all the videos, released May 2021, and helps with the most recent changes in FAA laws.
Take as many online free practice tests as you can to get familiar with some questions and see what you need to work on more.
As always, check with the FAA website for newer laws. This video was taken 7/8/2021, so things may have changed depending on when you watch this video.