Any HDMI cable will work, but optimally you want the cable to be a foot or less. I use this and the sound is so good I’m not itching to upgrade, and as the 1 foot length is only 8 bucks it might be a good option just to test it out without risking $$$.
https://www.monoprice.com/product?p_id=24187
If you wanna buy something better I think the Wyred 4 Sound cable mentioned by @sls883 mentioned looks very interesting, and the DH Labs HDMI 2.1 is probably good as well but minimum length is 1.6 feet. Frankly I think any are good enough to tell you if the connection itself is superior. Hope this helps.