Browsing the listings a few things jump out at me....
This is a DAC I've always lusted after I do love Japanese sound..
https://www.audiogon.com/listings/da-converters-free-shipping-230v-50-60hz-2018-01-01-digital
This seems well regarded and uses the PCM-1704 chip
https://www.audiogon.com/listings/da-converters-lessloss-dac-2004-mk-ii-dac-d-a-converter-dac2004mki...
I certainly second the recommendations of either Border Patrol or a used Audio Note DAC if you can find one in your price range. Good luck!
This is a DAC I've always lusted after I do love Japanese sound..
https://www.audiogon.com/listings/da-converters-free-shipping-230v-50-60hz-2018-01-01-digital
This seems well regarded and uses the PCM-1704 chip
https://www.audiogon.com/listings/da-converters-lessloss-dac-2004-mk-ii-dac-d-a-converter-dac2004mki...
I certainly second the recommendations of either Border Patrol or a used Audio Note DAC if you can find one in your price range. Good luck!