Dawid Does Tech Stuff is as least as entertaining as LLT but without the inaccuracies or the drama: https://youtube.com/@DawidDoesTechStuff
Dave2D is great for laptop and mobile phone coverage: https://youtube.com/@Dave2D
Paul’s Hardware is good for tech news and build guides: https://youtube.com/@paulshardware
Kit Guru has consistently good hardware reviews: https://youtube.com/@KitGuruTech
Sara Dietschy has probably my favorite general tech channel on YouTube: https://youtube.com/@saradietschy
Crucial and Samsung have good reputations.