For free, I'm not sure what you can get online. I know some people do have groups where you can pay to be added to it and they post their signals there. However, this is a gamble as well. You're essentially just letting someone else gamble with your money by trading.
The main emphasis i prefer is to find ytchannels for learning to trade better, like reading the charts and to know how to combine the indicators for signals. Of course are telegram-groups for signals interesting, but i would choose always a few sources for a signal to be sure to invest etc.
For people with german native language is the channel of
Julian Hosp very interesting, im looking for more like this and of course english language...