Firstly, the issue of fake accounts - there are tons of them. The only way I have found to trust a Telegram channel is to see its posts shared by another trusted channel.
Next, the scammers. Telegram seems to be doing fuck all to prevent bot accounts. I regularly get private messages from scammers. Delete and move on. Telegram lets you delete the convo from their end.
And of course change all of your account settings to private.
Informative channels to join:
DiscloseTV - https://t.me/disclosetv
Qtah - https://t.me/Qtah_17
Blueprint - https://t.me/BLUEPRINT_Q
Patel Patriot - https://t.me/patelpatriot
Brian Cates - https://t.me/drawandstrikechannel
Mike Flynn - https://t.me/RealGenFlynn
Kanekoa the Great - https://t.me/KanekoaTheGreat
Project Veritas - https://t.me/project_veritas
Covid Truth Network - https://t.me/covidtruthnet
George News - https://t.me/georgenews
BioClandestine - https://t.me/bioclandestine
Intel Slava Z - https://t.me/intelslava
Garrett Ziegler - https://t.me/GarrettMZiegler
I'd add Gateway Pundit as well, reliable news source. Blaze Media (Not 100% sure if that's officially them but their posts coincide with their other social medias). Not sure if Trump's is real or not but again coincides with his official statement timings. I'm open to y'all's thoughts on those.