Any mail that I have sent to me from the US to China has both addresses: Chinese Characters and English/pinyin combo.
I believe that the only parts of the English address actually used outside of China are the country and zip code. Once they see “PR China” and 610000 for Chengdu, I don’t think they actually care about the street address which can be in pinyin or English translation (RenMin South Road or RenMinNanLu).
Once it reaches China, local logistics start using the Chinese address.
Of course also include your phone number, while also indicating it’s your number with 电话：########### though this does not necessarily mean you will receive a call. This is how I’ve done it for years and have even been able to receive postcards from the US.