You want to use the analog out of the CD player. IMO any main brand CD player from around year 1995 with a retail price once higher than 500$ will give you a 100% perfect output. Sound differences in this class are close to non existant, if there are objective ones, it is not about better or worse, but taste. The more expensive models usualy have better outside optics, haptic and as well some better internal parts
A DVD is not the best idea. First, most are very slow in reading the CD and in my experience they very often fail unrepairable without any explainable cause.
If a CD player fails, the most common cause is a deteriorated rubber belt, followedby a worn out laser. Dirty lenses are often mentioned, but not found that much in reality, unless you smell the nicotine... Belt and laser are quite simple to replace, but be aware of unabtainable lasers, as there are a few.
Here is a list of players, DAC and drive used:
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/
vasiltech.narod.ru
If you want me to mention brands, Marantz and Onkyo come to my mind first. Denon, Teac. Compared to the numbers sold, the majority of those usualy last forever. I dislike Sony, Pioneer. I would avoid those fancy brands like NAD, Caimbridge, Merian and the like. Usualy cheap internals adapted to some complicated stuff to make it look special. You will not find "better" sound there.
You can get first class CD player used from 50$ up. 200$ seems a reasonable limit for a maybe once 1200$ top model. People don't want them any more. Many of the streaming generation inherited them from their parents and don't have any interest in those dust catchers. So it is a buyer market, just like it was with record players 30 years ago. There are no urgently wanted, rare models, that's only sales talk. It's only unsellable at all or hard to sell once high quality units, maybe with a little interest from nostalgic people like us. Not only look at eBay, but at other, smaler or even local sales places too. If you can not test or return it, reduce the price for higher risk. If you can test it, have a know CD with you. I had sellers that pretended not to have one. Even without listening, you can tell how fast it picks up and wheter it skipps tracks. A cheap earphone with an adaptor will tell you if the analog out is working.
Many CD player, available new today, use cheap computer drives, those can be slow and loud. I have no desireable new player on my list.