What should I watch if I liked Spider-Noir?

If you liked Spider-Noir, watch Batman: The Animated Series first. It has the strongest mix of shadowy city crime, detective work, stylized villains, and comic-book atmosphere.

Other strong picks:

1. Batman: Mask of the Phantasm — the best single-movie choice for noir superhero tragedy.
2. Sin City — much darker and more adult, but visually one of the closest live-action noir-comic matches.
3. Jessica Jones — modern private-investigator noir with superhero elements.
4. Watchmen — grim masked-vigilante mystery with a heavy noir mood.
5. The Shadow — pulp-era masked hero energy, closer to the 1930s/1940s feel.
6. Dick Tracy — colorful but very pulp-crime and stylized.
7. Batman: The Long Halloween — mob-crime mystery with Batman in full detective mode.
8. Spider-Man: Into the Spider-Verse — if what you liked was the character specifically, Spider-Man Noir appears there with the same old-school detective flavor.