It depends what type of trading you would like to do. For high frequency trading, then using a deep neural network might work but could mainly predict order book imbalances. There is a nice article here - https://www.coindesk.com/five-machine-learning-methods-crypt...

For daily trading or slower trading strategies there is also a company called https://crypto-ml.com/ who are providing ML signals (Twitter @crypto_ml). But most people are listening to signals on telegram or discord groups.

There is also a new entrant called https://www.edgebase.io (Twitter @edgebase_io). They let you build your own ML models with data they provide as well as data you bring. You construct the features and they do all the ML under the hood