first thing that comes to mind that feels of the time is all the vitamin string quartet covers I was obsessed with lolololol I should get back into those!!
Also loved Hozier, Laura Gibson (LOVED her—listened to skin, warming skin on repeat), of mice and men, mumford and sons, band of horses, Lorde, the black keys, FOB, Panic!, All Time Low, a little 21 pilots, a little MCR, Halsey, and the Beatles (especially early in high school and especially the songs featured in across the universe (2007) but I also loved paperback writer for some reason).
Very tail end of my senior year I got more into broadway and was obsessed with everything from Natasha, Pierre, and the Great Comet of 1812 (which was SNUBBED for the Tony by dear evan Hansen 🤮)
Didn’t do a lot of country, was mostly into country in elementary and middle school, then got back into it after graduating college, both from nostalgia and from a desire to preserve that part of me when I decided to move to the east coast.
The first ones I mentioned were from streaming(not a lot since unlimited data wasn’t a thing for me at the time and my parents also weren’t paying for Spotify for me so the ads were annoying), my iTunes library, YouTube to mp3 files I put on my phone back when it was easier to do that, and CDs. But I also liked the hard rock and classic rock stations on the radio for my drives to and from school.
Spotify also tells me I liked death cab for cutie and needtobreathe more than I remembered lol