It is useless to ask for generally good black metal because there are many metal sub-genres that overlap with black metal or that are found within black metal itself, and everyone has their own tastes. For example: symphonic, progressive, avant-guard, minimalist, aggressive, etc.. so you could ask for "avant-guard symphonic black metal" or "aggressive minimalist black metal", etc... if you prefer something more like death metal you could always ask for "blackened death metal" or "progressive blackened death metal" etc.
Shit does there exist a link on the internet that I could have referenced that concisely explains what I just said?