What are people doing to get back to the roots of Christianity?
Every time a new group starts up, they claim to be getting back to the roots. Jesus was reforming Judaisim. The split between the Catholic and Orthodoxg. The Protestant Reformation. The dozens- if not hundreds- of denominations that exist today. They all claim to be getting back to the roots. It’s like when kids grow up, they vow not to make the same mistakes their parents make, but they end up making some new ones of their own, so their kids vow not to make those same mistakes, etc. Anyway, to answer the question, yes, there are denominations in Christianity today that claim to be getting back to roots- all of them.
It depends on your definition of “getting back to the roots.” For instance, there are sects of Catholicism that are hardcore old-school (like rejecting Second Vatican II and still saying the Mass in Latin- Mel Gibson’s sect comes to mind, and I could find other such groups without too much trouble if that’s what you’re looking for). Incidentally, their version of going back to the roots probably runs contrary to your ideals of getting back to the roots based on what you wrote.