I have purchased LG v30 plus and would like tell you it’s the best phone i have tested so far regarding dac. It can drive 200 ohm earphones. Even you use 30 ohm headphones, you can easily see the differance (my preferance is “detailed” from the sound mode).
Additionally phone has 128 gb capacity. It’s worth trying.
I got a V20 for music playback and love it too!
I have had my V30 for almost two years and it is great. My contract is up on Black Friday and I will likely get another LG. I was a Samsung guy for many years, but these phones are much better for music.
However, they are not better phones overall. If music was not such a high priority for me, I would go back to Samsung.