With Matt Reeves' The Batman taking a decidedly grounded approach to the titular hero and delivering a mystery that served, in part, as a deep dive into the lore of Gotham City. There's one particular Batman comic that could be adapted into the perfect sequel. Scott Snyder's The Gates of Gotham deals with very similar themes surrounding the history of Gotham and its hierarchy that dates back to the early days of the city. Snyder's story takes things even deeper than a plot revolving around the city's appetite for organized crime, peeling back its layers and making the setting a character in of itself.
Source：https://www.cbr.com/the-batman-2-scott-snyder-comic/
