My personal recommendations would be: "To Aru Majutsu no Index" - 2nd season "To Aru Majutsu no Index II" and the movie "To Aru Majutsu no Index II";
"Monogatari series(Bakemonogatari, Nisemonogatari, Nekomonogatari: Kuro, Monogatari series 2nd season and Kizumonogatari)"; "Gangsta"; "Durarara!!" - 2nd season divided in 3 parts "Durarara!!x2 Ten" - "Durarara!!x2 Shou" and "Durarara!!x2 Ketsu"; "Dungeon ni Deai wo Motomeru no wa Machigatteru Darou ka?"; "Yahari! Ore no Seishun Love Comedy wa Machigatteiru" - 2nd season "Yahari! Ore no Seishun Love Comedy wa Machigatteiru. Zoku". I have other suggestions but I will tell after you watched to these ones here.
"Monogatari series(Bakemonogatari, Nisemonogatari, Nekomonogatari: Kuro, Monogatari series 2nd season and Kizumonogatari)"; "Gangsta"; "Durarara!!" - 2nd season divided in 3 parts "Durarara!!x2 Ten" - "Durarara!!x2 Shou" and "Durarara!!x2 Ketsu"; "Dungeon ni Deai wo Motomeru no wa Machigatteru Darou ka?"; "Yahari! Ore no Seishun Love Comedy wa Machigatteiru" - 2nd season "Yahari! Ore no Seishun Love Comedy wa Machigatteiru. Zoku". I have other suggestions but I will tell after you watched to these ones here.