What got me that feeling of discovery again, decades later, and even surpassed it, was doing release Fridays and just listening.
I mostly know what (sub)-genres I like, I go through upcoming release lists for the next week, open every bandcamp link in a new tab (or for those that don’t have bandcamp, I see if I care about the genre enough to search for a single on YouTube), and then I have maybe a hundred links, I sample everything for a few seconds and decide on yay or nay, and about 10 - 20 % go onto my excel sheet. Then on Fridays (up to Sunday, depending on how busy the release day is) I start listening to all those albums to see which of those I’ll buy (usually 1-2).
It’s some effort, but my appreciation for music was never this high.