One of the most common misconceptions about Batman is that he's largely a lone wolf figure. However, the brooding vigilante never made it especially far into his career before taking on Robin as a sidekick. Dick Grayson, being the first Boy Wonder and donning the beloved Nightwing persona later, is the most iconic of these sidekicks. However, Bruce Wayne has famously taken in several budding heroes.
Source：https://www.cbr.com/every-robin-batman-combo-throughout-time-dc-comics/
