Try_hard
Naruto, during shippuden and help improve the villages. maybe ADD Sakura, Ino and Tenten to the Harem before anybody complains about my picks. All three girls and many are under use in fanfic or badly portrayed in cannon. the was so much that could have been done to help Sakura in the series get stronger or develop her character but she only gets stronger in shippuden but no character development happened. The same thing happened to all the female characters. So if Mc can make it happen in his Harem then it's a miracle.
Altor-san why dont you make more worlds like a vacation for exemplo go to a pokeverse not canon something tha wasnt explored and do something like campin while training pokemons wold be funny or go to mahouka just for the school life and get some wifus you dont need to make a whole ark for every world justo go do something and after siemtimes go there again to visit some friends he make that is my opnion of things you can do after finishin the main story you can do it by sending a week clone because the mc wold be to op