From reading your post it seems like you could be interested by the Jesus movement (that is the jewish followers of Jesus, before catholicism was codified and adopted by the Romans as state religion). Everything that wasn’t authoritarian fear-based catholic was branded as “gnostic heresy” and purged from the canon, but there’s some real good shit that is very close to the core message of Christ.

A recent(-ish) example of gnostic christianity is catharism, which was a heresy that lasted for a few centuries in the South of France. They had no clergy, just a caste of ascetic wise men and women who would walk the land and dispense wisdom and judgement. Very egalitarian, very spiritual, very christ-like. As you can imagine, they got crushed in one of the rare “self-crusades” in history (meaning the King of France sent his own armies to burn down cities in his own country and murder thousands upon thousands of his own subjects). As you can imagine there is not one history teacher in France who will tell you about this episode.