I think its important for you to understand that most strategies that really make a profit will not work if many people use them. Therefore, people who find such strategies in 99% of cases do not talk about it.
Therefore, for myself, I see the only way out - to monitor the market and try to find my own strategies that will work.
Then trying to find your own strategy that works is how those 99% of traders have struggled with their trade before being successful and would not share easily or try to open a signal group.
Most of the strategy are worked on for better trading.