If you're interested in the aftermath of the Crisis, here are key locations and events mentioned in the show:

: Barry repurposed an old S.T.A.R. Labs facility into a meeting place for the world's greatest heroes, creating a table with chairs for himself, Supergirl, Batwoman, and others.

In the Arrowverse, was a massive crossover event where Barry Allen and heroes from across the multiverse fought the Anti-Monitor to save all of reality. Following the battle, the multiverse was reborn into a single "Earth-Prime," where the timelines of various shows merged. Key Post-Crisis Changes for The Flash

: The Green Arrow died during the Crisis, and the heroes of Earth-Prime gathered to honor him before starting this new chapter.