@nic919 If you’re comfortable with trying a couple of very different dacs on credit with fair return policies, then your best bet is to sample them with a well made digital coax cable. At least to experiment and find where improvements occur relative to your setup. It’s always a bit of a gamble, but you don’t know what will work until you try it. Logic has it that transports these days will -in general- render better results, but many CD players also do a very decent job of clocking and signal isolation for their digital output stages.
Regardless, so much of this is about learning to associate these characteristics described by others with what you are already hearing in your own system - hence trial and error.
Best of luck and enjoy the music 🙏🏼👍🏼