I've been acros this group couple of days ago, seems like the signals are solid and the admin is legit. The community is great, the main chat focused on crypto and it's very good for learning about trading. This group has +4000 members. Heard that their official website is coming soon.
Smart Signals Discord invite: https://discord.gg/R7D9YGp
https://twitter.com/ssignalscrypto