If Suicide Squad: Kill The Justice League left a bad taste in your mouth, I'd highly-recommend cleansing your palette with another playthrough of the Batman: Arkham Trilogy, you'll have a much better time.
While Marvel's Spider-Man is now a contender for the best superhero video game adaptation, the Batman: Arkham games were one of the earliest examples of a superhero game done right, and they're just as popular now as they were back then.
You can tell they've got staying power from the fact there are still modders creating content for them, one of which being an impressive remaster mod for Batman: Arkham City, which I'd argue is the worst in the trilogy but that's a story for another time…
That being said, if this is your favorite one and you primarily play on PC, I'd highly recommend you check out the Arkham City Redux mod that's available to download right now for free.
Simply put, it gives the game a HD makeover, not that it really needed it mind you, as the art style for the Arkham games has always been fantastic, especially Batman: Arkham Knight which is still one of the best-looking games ever made.
The mod's description goes into a bit more detail, saying it "features over a thousand upscaled, retouched, refined and manually improved textures".
Honestly, it just sort of makes me sad that the chances of getting another Batman: Arkham game is slim-to-none, with the next best thing being an upcoming VR game called Batman: Arkham Shadow.
Who knows though, perhaps a true continuation of the series is on the cards, especially after Suicide Squad: Kill The Justice League's failed attempt at expanding the universe.