I will advice that you forget about signals in crypto trading, and focus on coins that are moving with the current market trend and situation. Following or using signals in crypto currency to me is not the best, neither is it safe if compared to the trade you are making at that point in time. The most used crypto trading signal in the crypto space is the buy low and sell high, and this can be simply followed and used if you are watching the market consistently. A particular coin might be trending at the moment on your own watch, and at that time, it might be a buying or selling signal, which will make out profit for you.
Stick with the market watch, you have all the signals you need. Thanks.