For singles I prefer AD825 (very neutral and digs deep), OPA134 (has bite) and some like the OPA627 (too laid back for me).
The AD825 has to go on an adaptor as it comes in SO-8 unlike the others that are available as DIP-8.
If you want a good signal output cap for a NOS DAC, look at the BlackGate N.... the red suckers... I kid you not. Kicks Auricaps and other $$$$$ caps in the arse for that application. Used in Peter Daniel's NOS DAC (aka AudioZone DAC1) as well as Yeo's NOS Monica.... they swear by them.