I would like to buy a BV6000, which shop can you suggest me where I can order it? Amazon should be ok? Which shop
is selling the phone on the latest hardware revision without all known problems? (Proximity Sensor issue, etc..)

Thanks

I can not suggest you a special seller (all other sellers would not be happy about that) but we also have an official blackview store on platforms like Aliexpress and on some Amazon platforms.