Game:

Official latest manual etc  -  https://recf.org/vex-robotics-competition/
Robotevents  -  https://www.robotevents.com/robot-competitions/vex-robotics-competition
Official Q&A  -  https://www.robotevents.com/V5RC/2025-2026/QA

General:

Official VEX forum  - https://www.vexforum.com/
Unofficial Wiki  - https://wiki.purduesigbots.com/
Drives - https://www.vexforum.com/t/catalogue-of-drive-gearings/109498

Youtube Channels:

https://www.youtube.com/@lukedoesrobotics
https://www.youtube.com/@FUNRoboticsNetwork
https://www.youtube.com/@Joseph973
https://www.youtube.com/@9MotorGang


Coding:

C++ beginner (free-ish)  - https://www.codecademy.com/learn/learn-c-plus-plus
C++ Full (free-free)  - https://www.studyplan.dev/cpp