Actually, I think Lanzhou Library is better. If your home is in Chengguan, you can go there, in the sports park. I used to go there.

If the family is peaceful, go to a nearby university to study. I'm from Jiaotong University, and the quietest ones in our school are Bajiao and the library.

As for the park, I don't recommend it, because it is very hot now, and there are many people playing cards in the park, so it will not be very quiet.