Well, sometimes you can check out dedicated comic websites or apps. For example, Marvel Unlimited or DC Universe might have it if it's related to those universes. Also, libraries sometimes offer digital access to comics. It's worth a try.
You might find Jinx manga on dedicated manga apps like Comixology or Shonen Jump. Another option is to search on bookstore websites that sell digital comics. Just make sure you're accessing legal and authorized sources for the best reading experience.
Jinx from the comic and the animation can differ in terms of her backstory exposition. The comic might delve deeper into her past, and her powers might be depicted differently in the animation to make for better visual effects.