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
Good tips. Some of those channels post way too many messages every day for me to keep up. My favorite is praying medic. There are also a couple local "audit watch" or patriot type channels I keep up with. Otherwise, I get my news here and on Gab.