Captain Marvel/Shazam.
Wondy was a very solid film and it has opened the doors into magic and mythology for the dc cinematic universe. With a Captain Marvel movie, u can expand on that with the lords of order/chaos and eventually another pantheon(Egyptian gods). The first movie would be the origin story and can be bright eyed and a bit whimsical similar to how Wondy was portrayed at times, but have a Peter Parker Spider-Man element to it since we're dealing with an adolescent that turns into an adult. Part two would be a bit darker and involve Bladam. It would be a win Imo.