YouTube

Good search terms: frc gears

FRC Teams Youtube

https://www.youtube.com/user/FIRSTWorldTube

https://www.youtube.com/user/FRCTeamsGlobal

https://www.youtube.com/@frogforce-team5038

https://www.youtube.com/@robotin3days

https://www.youtube.com/@ethanreed4517

https://www.youtube.com/@FirstUpdatesNow

https://www.youtube.com/channel/UCrPaJ2cDBRG5anDkICpr5rg

https://www.youtube.com/c/Team708Org

https://www.youtube.com/@team254robotics

https://www.youtube.com/@FRCTeam2910JackintheBot

https://www.youtube.com/@FRCTeam1676

https://www.youtube.com/@CRyptoniteRobotics

https://www.youtube.com/user/teamdriven1730

Engineering

https://www.youtube.com/@SmarterEveryDay

https://www.youtube.com/@JeremyFieldingSr

https://www.youtube.com/@engineerguyvideo

https://www.youtube.com/@Lesics

Math

https://www.youtube.com/@numberphile

https://www.youtube.com/@3blue1brown

Technology

https://www.youtube.com/@TechnologyConnections

https://www.youtube.com/@Asianometry

https://www.youtube.com/@tested

General Tech/Engineering/Physics/Science

https://www.youtube.com/@TheBackyardScientist

https://www.youtube.com/@veritasium

https://www.youtube.com/@SteveMould

https://www.youtube.com/@BreakingTaps

https://www.youtube.com/@SabineHossenfelder

https://www.youtube.com/@QuantaScienceChannel

https://www.youtube.com/@fermilab

https://www.youtube.com/@TheActionLab

https://www.youtube.com/@GREENPOWERSCIENCE

https://www.youtube.com/@AppliedScience

https://www.youtube.com/@periodicvideos

https://www.youtube.com/@LookingGlassUniverse

https://www.youtube.com/@physicsgirl

https://www.youtube.com/@ScienceAsylum

https://www.youtube.com/@pbsspacetime

https://www.youtube.com/@sixtysymbols

https://www.youtube.com/user/joannelovesscience

https://www.youtube.com/@NurdRage

https://www.youtube.com/@theCodyReeder

Electrical Engineering

https://www.youtube.com/@EEVblog

https://www.youtube.com/@ElectroBOOM

https://www.youtube.com/@Afrotechmods

https://www.youtube.com/@greatscottlab2

https://www.youtube.com/@greatscottlab

Civil Engineering

https://www.youtube.com/@PracticalEngineeringChannel

https://www.youtube.com/@TomScottGo

Software Development

https://www.youtube.com/@Computerphile

https://www.youtube.com/@Fireship

Making

https://www.youtube.com/@ThisOldTony

https://www.youtube.com/@vvega007

https://www.youtube.com/@StuffMadeHere

https://www.youtube.com/@michaelrechtin

https://www.youtube.com/@MadeWithLayers

https://www.youtube.com/@CNCKitchen

https://www.youtube.com/@DIYPerks

https://www.youtube.com/@simonegiertz

https://www.youtube.com/@Iliketomakestuff

https://www.youtube.com/@ExperimentalFun

https://www.youtube.com/@jeriellsworth

https://www.youtube.com/@CNLohr

https://www.youtube.com/@Nighthawkinlight

https://www.youtube.com/@TomStantonEngineering

https://www.youtube.com/@GommeBlog - a lot of "how it's made videos", but mostly a car channel

Electrical Engineering/Arduino

https://www.youtube.com/@BenEater

https://www.youtube.com/@AndreasSpiess

https://www.youtube.com/@MickMake

https://www.youtube.com/@sparkfun (company)

https://www.youtube.com/@maker101io

https://www.youtube.com/@updowndown

https://www.youtube.com/@BrainybitsCanada

Rocketetry/Aerospace

https://www.youtube.com/@EverydayAstronaut

https://www.youtube.com/@VideoFromSpace

https://www.youtube.com/@scottmanley

Lego

https://www.youtube.com/@BrickExperimentChannel

https://www.youtube.com/@sine35video/videos

https://www.youtube.com/@JKBrickworks

https://www.youtube.com/@munimunibekkan

Teaching/Mentoring

https://www.youtube.com/@TheLetteredClassroom

https://www.youtube.com/@spencereducation

Company Channels

https://www.youtube.com/user/AndyMarkTube

https://www.youtube.com/channel/UC_gLJceCDydTPgeNbibqKIg (Rev Robotics)

https://www.youtube.com/user/iR3Creative