CD player recommendation with good built in dac under 1k new or used? please and thanks

Can you get a transport and use your current DAC? If so, Audiolab 6000CDT and Cambridge CXC v2 are very good budget transports. 
 

In budget CD players I would look into Rotel, Marantz, may be a used Rega. 

I bought an emotiva ERC-4 bc it had a built in DAC for external use. solid well built great sound around 600$

Audiophile 1 +1

Used Bryston BCD-1. Bought one in 2012. Still use it as a digital transport. But the built in DAC is very good in it's own right.

Like my turntable’s the cd player is collecting dust, that aside it’s great when I take the time to use it. A late model purchase Teac pd-H600 came with many reviews putting it at twice the msrp value, meaning better than many $2k+ units. They were right, in most categories it’s superlative.
Cheers