Where to continue the World Trigger manga

World Trigger by Daisuke Ashihara, 2013. The manga is still ongoing.

• Season 1 (73 episodes): Continue the manga from chapter 120 in volume 14. The last two episodes rush ahead through the next few chapters as a preview, and Season 2 retells them properly, so some of it will look familiar.
• Season 2 (12 episodes): Continue the manga from chapter 160 in volume 18. The finale stops partway into the chapter, so you'll re-read the start.
• Season 3 (14 episodes): Continue the manga from chapter 197 in volume 23.

Read the manga: Viz.