Which publishing house has the most complete annotations of Tang poetry and Song poetry?

It's hard to say, because the annotations of ancient books have been different in past dynasties. I recommend several better social science comprehensive publishing houses in China, and their books can be considered more:

Comprehensive social sciences publishing house ranking:

1, Commercial Press

2. People's Publishing House

3. People's Literature Publishing House

4. Writers Publishing House

5. Yilin Publishing House

6. Zhonghua Book Company

7. Social Science Literature Publishing House

8. Life Reading Xinzhi Sanlian Bookstore

9. Central Compilation Press

10, National Library Press