Green Arrow has a rich history at DC Comics. Oliver Queen was a Robin Hood themed Batman clone in the Golden Age, but his Silver Age return changed all of that. Oliver Queen became a liberal firebrand, a characterization change that made him as lively and popular as ever. Since then, he's been through peaks and valleys of popularity, becoming a beloved facet of the DC Multiverse.
Source:https://www.cbr.com/characters-who-could-replace-oliver-queen/