Ska band?

A community in which everyone has equal power and acts in solidarity with one another

Bowling league

First and foremost, not all cults are negative. From that point we can have the scale be cult specific.

Negative Cult(-1) - Benign Cult (0) - Positive Cult (+1)

The opposite I would assume would be non spiritual groups of people who connect in another way outside of something "spiritual", without a set standard for beliefs provided by a singular leader required to be member to the group.

Negative Group(-1) - Benign Group (0) - Positive Group(+1)

A cult is a system of worship or veneration organized around a central person, character, symbol, or object. There's nothing inherently good or bad about it.

book reading club?

There are different kinds of cults. Cult is a different thing from religion. It doesn't belong on the same axis. But we can continue the thought if we define it as religious cult.

The scale is about excessive binding, control, rituals, restrictions, belief systems. If the left is the extreme, then towards the right we have weaker restrictions upon the belief system. The belief becomes weaker, and the beliefs do not have to restrict other and own people's activities and beliefs.

Religion in the middle makes no sense. It should be the label on the scale. "Religious extremism" or similar. Maybe narrow, restrictive, totalitarian.

I don't know specific terminology for the right side. Maybe open or unrestrictive practice of religion.

Normal lol

actually opposite?

A cult is a thing, the opposite is not a thing. You can't name not a thing.

It's just everyone else doing whatever they want.

The key difference between religions and cults, is the level of restrictions on outside information.

On that scale cults are at one end, religion in the middle, and science at the other end.

12 Step Support groups.

No dues or fees; no full time leaders; you are a member if you say you are and no one can say you aren't.

I expect many downvotes.

There are many definitions of cult. It can be a negative or dangerous religious group. A religious subset focused on a specific practice. Or a group with an eccentric leader focused on claiming they have the correct interpretation of canon.

Knowing you mean the first negative definition, then religion as the standard doesn’t make much sense. The positive of religion would simply be the benefit of religion, which is dependent on whichever religion is being discussed.

For Buddhism it would be spiritual development, enlightenment, and freedom.