Where should I go to interview blind people (more than one) (Shanghai)

You can contact the Shanghai Disabled Persons' Federation. Website:/

The Disabled Persons' Federation has a propaganda department and full-time propaganda cadres. As long as the intention of the interview is clear, any kind of blind person can help you interview. Moreover, the barrier-free facilities and existing problems you mentioned can usually be found in the Disabled Persons' Federation. If you are lucky, you can also contact NPC representatives or CPPCC members who are concerned about barrier-free facilities through them.