r2r dacs have been around for ever. The thing that makes the better today than they have ever been is the resisters are better with closer tolerances and the rest of the technology that goes into them is better. Chip dacs can be extremely cheap or extremely expensive and everything in between. The electronics that a company adds can make the same chip sound the way they want.
So all and all it’s your ears and your wallet that make your decision of what kind of dac you get.
All the best with your hunt.
JD