I think there is nothing free in this world because of the benefits you will get after trading, some are free but this is only a trial without any benefit for you, if you have money then I recommend buying rather than searching for free but won't find it until and what you find is just fraud or whatever, doing your own analysis, I think it's good for you if you don't want to spend money on it.
There are free bots, but it is just better to either buy one or just not use it at all because some of these free bots that are available are not updated and not efficient enough, because the developer is making them with any motivation, trading bots are based on machine learning which takes a lot of effort and a lot of programming, so it is best not to use the free ones because they might mess up and make lose money, so if you want to use bots just buy them.