I’m sure the idiocy and biased nature of Aslan’s works has already been thoroughly debunked, however I wanted to focus on one particular claim he makes - the apparent multitude of messianic claimants within judea during jesus time. Where are their names, and how can I read about them?
The Jewish historian Josephus would be a good place to start. He was a contemporary of Christ and even mentions Jesus in a couple of his writings. He probably included other messianic claimants in his writings.