Reborn in 1958

Transmigrate to Republican-Era China and Become a Warlord

There's a butler and a younger sister, and he becomes sworn brothers with a warlord from Sichuan, the youngest brother! During the War of Resistance, he becomes the strongest logistics officer in the Sichuan Army! What book is this?

Reborn in the 1950s, Hunting, and a Pocket Dimension

My Kid's Run Out of Books to Read: Recommend Some Novels for Them

Something like a livestream exploration story. First, the protagonist must either sign up voluntarily or be selected by someone else to join the show. Then Zhang Qiling, Bao'er Jie, and the protagonist go exploring on camera. The protagonist should start out being looked down on by everyone.