Another bread I used to bake myself but now routinely buy is this pita-like bread from Xi’an, where I lived a long time ago. It is the bread most often used in 肉夹馍 (ròu jiā mó), Rou Jia Mo.
Rou Jia Mo
The bread is called 白吉饼 (bái jí bǐng). There is a recipe in the first post of the Rou Jia Mo topic linked to above. Unusually, it is not steamed, but dry-fried then baked.
Bai Ji Bing