I don't believe in organized religion.
But there is already a Church of sorts that's sort of kind of close to my beliefs: Unitarian Universalists. There's also something called the Universal Life Church whose only doctrine is pretty much, "DO WHAT IS GOOD."
Those religions are so liberal that they can't be considered to have any doctrine at all.
Nothing's wrong with that, but my problem is, why do they call themselves a religion? Because they are American in origin and US laws grant religions tax-exempt status?
That's what happened to Scientology. The founder initially claimed it to be science, not religion; then later called it the "religion of Scientology." Now, it claims to be a bona fide religion, and has tax-exempt status in the US.
My advice, don't join any religious organization. Just believe what your conscience tells you, without joining any formal organization.