I am a music lover myself, and I have over a 1000 in my phone.The music quality of the lg k10 is pretty good, sound is nice and clear with ample bass.
The headset provided with the k10 sounds good, but it is very uncomfortable and doesn’t fit properly, so I use the sony mdr as200 and the sony xb450, and it works well.
As for other phones in this budget, lenovo k4 note has dolby atmos, but I previously had the lenovo k3 note with dolby audio previously, and the sound cracks.