I recently read The Zealot by Reza Aslan -- and would be reviewing it right now on Goodreads and Amazon if one could do so without choosing a numerical (star) rating. I can't make that choice, because whether I could recommend the book depends on the accuracy of its many assertions about Biblical scholarship and about the history of both Judaism and early Christianity. Without undertaking a good deal of independent research on those matters, I can't assess Aslan's accuracy.
If, and I emphasize if, Aslan has done his homework properly, then the book is a fascinating account of how Jesus fit into the history of Jewish messianic trends and of rebellion against both Rome and the Jewish priestly heirarchy.
