I've heard good things about Gekko[1] though people are saying that it isn't easy to use, as it's an open source trading bot that you need to program yourself. I could definitely see people without much knowledge losing money with this especially with novices. Proceed with caution.
[1]
https://gekko.wizb.it/I ve heard of it but havent seen anybody use it, there is bot called profit trailer which is not free but it seems lots of users have lost money on it