I like to listen to Endel soundscapes when I remember to. I bought the lifetime subscription when it was on a Black Friday sale. I listen to Endel just about every night while falling asleep.
They have different soundscapes for relaxing, focusing, reading, winding down, commuting. I really enjoy this app.
Occasionally if the thing I am working on is repetitive and does not require much brain power, I will try to listen to an audiobook. But I almost always have to pause it earlier than intended because I either lose the thread of what’s going on in the book or the work I’m doing starts to require more from me. Honestly listening to an audiobook while working is a fantasy and I should not attempt it again. (Note to self.) I also get routinely interrupted by coworkers so it never works out for me.