It’s also worth mentioning there’s precedence in Aquaman leading an iteration of the Justice League in the past, and it did not include Batman or Superman. Instead, Aquaman ran a team with Martian Manhunter, Zatanna, Elongated Man, Vixen, Steel, Vibe, and Gypsy. Together, they kept the world safe, all while DC’s arguably more notable heroes were off elsewhere.
Article source: https://www.cinemablend.com/news/2464679/what-dc-should-do-with-justice-league-2-following-aquamans-success