Not all cults are created equal. Some cults are great for keeping people out of worse cults.
And if this is all that would be good about some cult  that would be enough but sometimes a cult even has positive value.  "tzadik"s are often some delusional leader who has enough magnetism to delude others.

The best scenario I can see is not to join any of the cults. But even if one does that is not always a bad thing. I was for example a  part of Rav Shick's {Moharosh} group for about 6 years and I think I got positive benefit out of it. But if I had been smart I would have just stuck with the basic Litvak Mir Yeshiva --straight Judaism approach-- .