Next step is to get a good digital to analog converter and quality headphones. You can’t go wrong with this https://www.audioquest.com/page/aq-dragonfly-series.html and a pair of these https://store.hifiman.com/index.php/he400se.html
Discussion
I use koss headphones, they’re classic, I have some fancy headphones I use when I make music but they don’t leave the house. Koss also has a lifetime warranty and I break everything I touch lol.
Nice! Koss was actually my first foray into good headphones. I only listen to music on headphones at home or work, never out and about—so I hear ya there. Plus, not being able to hear what’s going on around me kind of freaks me out. I stopped using headphones/earbuds outdoors years ago for that reason.