I'm assuming you don't want any sequel type of shows so here are a few I'm watching rn.
Megalo Box [Action, Sci-Fi, Slice of Life, Sports, Drama, Shounen]
Synopsis: Ashita no Joe 50th anniversary project.
JD (Junk Dog) participates in fixed boxing matches in an underground ring in order to live. Today, he enters the ring again, but he encounters a certain person. JD wants to take on a challenge that risks everything.
Golden Kamuy [Action, Adventure, Historical, Seinen]
Synopsis: In Hokkaido, the far northern lands of Japan, Sugimoto survived the Russo-Japanese war of the Meiji era. Nicknamed "Sugimoto the Immortal" during the war, he now seeks the riches promised by the gold rush in hopes of saving the widowed wife of his now deceased comrade from the war. During his hunt of gold, he finds hints of a hidden stash of gold by corrupt criminals. Partnering with an Ainu girl that saves his life from the harsh climates of the north, they venture into a survival adventure to race against the criminals that seek the hidden stash.
Sword Art Online Alternative: Gun Gale Online [Action, Game, Military, Sci-Fi, Fantasy]
Synopsis: Karen Kohiruimaki always felt out of place in the real world. Due to her extreme height, she found it hard to make friends with other girls her age. Everything changes when she's introduced to VR and Gun Gale Online. In GGO, Karen is free to play the cute, chibi avatar of her dreams! Can Karen find friendship in this bullet-ridden MMO...?