Well, there was never an emphasis on rebellion in the early church. Rather, the church made a point of trying to not be too rebellious.
As to the rest, it was probably not that much different than today. The church has always emphasized temperance, chastity, and similar virtues. The church has always emphasized taking care of the poor. (Even when “everyone” is poor, there are still people who lack shelter or food who are more poor.) The day-to-day emphasis would have been on following the rules, praying, and worship–not too different than religion, today.
An emphasis on ritual was probably not among the earliest of church features, but rituals are the physical expressions of shared belief, so it is probable that rituals arose within the first hundred years, or so, and have held a central place in the ensuing years. (Even the opposition to ritual that was expressed by some of the Protestant Reformers resulted in a sort of “anti-ritual” celebration; no group sustains itself with no rituals.)
Politically, Christians would have shared whatever common political beliefs were current in their towns. (None of the great persecutions were based on political strife so much as wanting to ensure that everyone got along, religiously–whether that was by everyone worshipping the emperor or everyone worshipping the same way each Sunday.)
About the only difference between early Christianity and today would have been the emphasis on proselytizing. It goes on, today, but it was a significant part of the church’s existence until they had actually made everyone in Europe nominally Christian. (After the 15th century, it rose up, again, as missionaries went out to convert Asia, Africa, the Americas, and the Pacific, but the disunity of Christendom put a bit of a restraint on those efforts and the rise of self-determination against Christian colonizers has dampened that effort after the first half of the 20th century.)
Books or websites? I’m not sure. Most of my information has been gathered from individual works addressing individual situations, not surveys and long period histories. I’ll see whether i can recall any general surveys.