Andor hands down. Every episodes theme was directly related to the theme of the episode, there were hidden themes that people didn't pick up on until later. It beautifully captures the suspense and drama of each episode. 100% my favorite
I'll mention Mandalorian alongside this.
The soundtrack from old Twin Peaks gets stuck in my head a lot.
Scrubs (original run) nowdays if you catch Scrubs airing somewhere the soundtrack has been changed due to rights. And next to no effort was put into finding replacements.
Letterkenny. By far.
The Leftovers
Watchmen
Sharp Objects
Squid Game (Season 1)
Old Top Gear, the intro song was unimpressive but all the montage music is great. Their music selection was on point from the very beginning.
House M.D. had an unexpectedly good soundtrack.
Stranger Things had some good covers.