Steven Stone really likes this new Topping, for a "reference" budget DAC. Bargain.
https://www.theabsolutesound.com/articles/topping-d90se-digital-to-analog-converter/
I am considering the Denafrips Pontus II (laddered resistor/R2R design), though the similar R2R-design Holo Spring 3 KTE (more $$) gets good reviews too. Alvin at Vinshine, the Denafrips worldwide distributor, is said to be great to deal with. Kitsune Audio, the Holo distributor in WA/USA is too.