[joseluis]

Apart from many good and very well known channels already shared:

- math videos https://www.youtube.com/c/TheMathSorcerer

- math videos https://www.youtube.com/c/brightsideofmaths

- math videos https://www.youtube.com/user/standupmaths

- mainly physics, plus chemistry, astronomy, math, and mechanical engineering videos https://www.youtube.com/c/MichelvanBiezen

- chemistry & physics https://www.youtube.com/c/AdvancedTinkering

- machine learning papers https://www.youtube.com/c/K%C3%A1rolyZsolnai

- painting & composition https://www.youtube.com/c/IanRobertsMasteringComposition

- medicine https://www.youtube.com/c/NinjaNerdScience

- medicine https://www.youtube.com/channel/UCFPvnkCZbHfBvV8ApBBE0vA

- therapy https://www.youtube.com/channel/UCbWvYupGqq3aMJ6LsG4q-Yg

- perspectives on physics and cosmology https://www.youtube.com/c/SeethePattern

- analysis of materials impacted by high energy phenomena https://www.youtube.com/c/MartinFleischmannMemorialProject

- perspectives on physics https://www.youtube.com/user/TheMachian/

- anatomy https://www.youtube.com/c/InstituteofHumanAnatomy

- signal processing https://www.youtube.com/user/allsignalprocessing

- solving complex sudoku-derived puzzles https://www.youtube.com/c/CrackingTheCryptic

- the art of listening: music albums gems https://www.youtube.com/channel/UC7shUDSkHjuQNegPhGdANQQ