What are the DACs that use good circuits in the Audio sections?

I just bought a Bryston BDA-2 DAC here on Audiogon, it has a discrete class A output circuit, as does the BDA-3 model.

Some of the Schiit DACS use discrete output circuits, like the Gungnir and Yggdrasil.

I'm sure there are others, but that's two companies that I know of. 

Discrete R2R DACs even in the absence of DAC chips still use logic chips. What's the problem with "chips"?

No.