I’ll admit I only made the Gordon leap because of the DCU-Ness of it all, so maybe I’m overlooking a better analogue? I can’t think of one at the moment

Plus looking at Peter Parker as Jimmy Olsen; Falcon as Robin; Gwen Stacey as Batgirl/Harley Quinn; and Kamala, Sam, and Miles as Wonder Girl, Teen Lantern, and Robin respectively, it does appear that MCU heroes are being gathered in as sidekicks to the Squadron here by presumably whatever force they used to rewrite reality

EDIT: Also I just went and looked at the cover again, and Nighthawk might not be mentioned in the solicit but he is one of the only three characters on the cover