Well, I suggest you not to rely on those signal services that are being offered on Telegram. I can say that it is much better to engaged with the community, for example, binance related facebook groups. In our local, there people that shares their technical analyses. But that's not always what will happen, better to do your own research to and not just rely on those signals from other groups. Even so, I think some signals are helpful for a trader to decide what coin to look at.