Need turbo purchase suggestion
 

My 2000 A-6 2.7 bi turbo needs new turbos.
I don't want to purchase Chinese made junk but I also don't want solid gold Audi dealer product.
Can anyone please suggest what manufacturer and models I need to replace the original turbos, and best vendor to purchase from?

This is a daily driver so does not need to be modified for racing or performance etc. but would like it to function like original equipment.
Thank you in advance for any suggestions
Kurt