Tokyo Ghoul:re 2nd Season (also known as Season 4) features the final 12 episodes of the anime adaptation, which heavily compresses about 121 chapters of the manga to cover the Dragon War Arc and the final confrontation, featuring an English dub by Funimation. The series follows Ken Kaneki as he leads the Goat group, concluding the story of the ghoul resistance and the war for Tokyo.
You can watch the full English dub of Tokyo Ghoul:re Season 2 on Crunchyroll and Hulu. Tokyo Ghoul:re 2nd Season (Dub)