I'm filming interviews with IT entrepreneurs https://www.youtube.com/channel/UC8NEikYv6nEVtW_eR4wLTtw/. This is a channel for those who make money in IT, or want to understand and find a role model, a niche. Who cares - I will be glad to see you on my channel. :)
"IT specialist" is an incredibly broad concept that does not mean anything. It's like saying "I'm a manager" - you can be a top manager of Gazprom, or you can be a sales manager in a nearby stall with telephones.
Author, be specific about what you want, without this give any adequate answer impossible.
PS For the foreseeable future, YouTube channels will not provide as much knowledge on IT material as books and official documentation for tools.