Overlord II, Sword Art Online: Alicization - War of Underworld Recommendations
Both of these seasons are the weakest season of absolutely great shows... if you enjoy those shows and the characters of those shows.
Basically, both of these seasons are "world building" seasons. They both ditch the main cast, nearly entirely, in favor of establishing a new group of people that are present in the world. In Overlord II, you get insight into the lives of the people on the other side of the battles against our main characters. In SAO: WOU, Kirito, the main character, is in a coma and an all new cast has the take over. The "new" cast that takes over the