To trade cryptocurrency, you just need to create an account with a broker, in which you will need to put at least one dollar into the cryptocurrency account. If you are not sure that you can earn something, then try the crypto trading demo account https://fbs.com/trading/specs/coins-crypto On it you can not worry about the safety of your investments.
The best one I can think of is here crypto role trading bots. There are quite detailed and original articles. But in addition to that, I can recommend that you join the main cryptocurrency forums and the Reddit subreddit. So you will find the most accurate and objective information.