There's a lot of choice these days, what input/sampling rates/output do you need. Personally I like AES/96..24/Balanced so the Lavry DA10 works for me. There's loads of good network players that do it all up to DSD and come in cheaper than standalone though.
Yeah, choice is baffling - in this instance this is for the PC/workstation, so reality is primary (but not always) input will be USB and out Headphones. Sources Streaming/CD/Rip etc.
I'm after a reasonably priced DAC.