Best Telegram Chats for Medfet/Dentfet

What are your favorites Telegram groups/chats about Medfet/Dentfet content and why? I wonder if I have discovered enough of them yet or not, happy for some recommendations 😃

I would love to get some recommendations. Unfortunately, I haven't discovered many. How do you search within Telegram groups/chats?

Which ones do you use? I would love to find some too.