Can we like... extend it to Top 5? coz apparently I cannot Top 3 xD Like y'all I'm a sucker for themes or music in general so I'm also making lists for them!
Here's for Japan & Korea. I'll probably make for Philippines next. Most of these are my faves while few are just fitting to the scene or intro/outro but not really my jam. Some titles from SK I didn't log in but I've seen them locally back then or stumbled upon on YT so somehow I'm familiar with their soundtracks.
https://mydramalist.com/list/1VKoRepL
https://mydramalist.com/list/Y4aK0nQL
If I will have to pick (by country), I choose:
"Musubizama" by Indigo la End [I Don't Love You Yet]
"Lalala Love Song" by Toshinobu Kubota [Long Vacation]
"Picture" by Gigi Giraffe [Meikenchiku de Chushoku wo]
or the classics "Planetarium" from HYD or "Shiosai no Memory" from Amachan - this one I like the cover more by Goose House
For SK, I'll go for:
"Satellite" by Saltnpaper [Chicago Typewriter] - haven't watched the drama yet but I saw the MV and I was like damn this is it
"White Love Story" by As One [Coffee Prince]
"It Has To Be You" by About [SKY Castle]
"Just Waiting" by Melo Breeze [Smile Honey]
"Come & Goes" by Hyukoh [Tourist]
I prefer catchy, chill, or feel good background but of course, if the scene calls for slow, sentimental vibe, I'll go with it. What matters is the feels.
As for movies, it's another story...