@steve59 I had the issue of low-level volume listening problems before I got my current headphones (had a new baby back then). My solution back then for 2-channel was to find gear that was ultra-quiet. I found that with this type of gear I could hear more into music at all times, including at very low volume.
I am ordering the Blade 2 Meta in Feb 2023 and I will be using my Benchmark stack from my office with the Blades until I raise funds for a more powerful amp. The Benchmark gear fits into the category of being great at low volume. The Stereophile reviewer of the Blade 2 Meta used the gear I have in my office. Though I will get something with more power down the line.
Some suggestions on quiet amps are SimAudio Moon and the CODA #16.