As all religions I know of essentially have a selfish motive (do good and you will be rewarded, do bad and you will be punished), how about a religion with no promise of reward or punishment. Imagine a religion with only one command:
Try and live your life in such a way so that the world would have benefitted from it.
No promises of rewards, no threads of punishment, just do it for the sake of being useful. I know it is difficult to define "benefit" but this should be left for each person to decide and have it on his/her conscience.
Also the aim should not be to be to be noticed and praised by other people so that essentially the people that practices this religion would do it more or less under cover. Also a person does not have to join an organization, you just practice it. As you can see, such a religion might well exist and nobody would know.
Try and live your life in such a way so that the world would have benefitted from it.
No promises of rewards, no threads of punishment, just do it for the sake of being useful. I know it is difficult to define "benefit" but this should be left for each person to decide and have it on his/her conscience.
Also the aim should not be to be to be noticed and praised by other people so that essentially the people that practices this religion would do it more or less under cover. Also a person does not have to join an organization, you just practice it. As you can see, such a religion might well exist and nobody would know.