Of all the many species that populate the DCU, none are more important or more foundational to its wider cosmology than the billion-year-old aliens known as the Guardians of the Universe. But despite being descended from one of the universe’s first intelligent species, and having shaped its development for untold eons, the Guardians themselves have typically acted in the background, rarely stepping into the limelight. It is long past time that changed.
Source:https://www.cbr.com/guardians-universe-oa-green-lantern-dc-comics-need-ongoing-series/