As I'm replaying Silver on Virtual Console, I feel like the Wild and Trainer Battle themes from Kanto belong here.
While the remixes themselves are solid, hearing them in-game can get a bit grating when battle animations start overriding the sound channels and isolating the higher pitched instruments:
https://youtu.be/lWVOYuRHaQ8?t=12717Specifically this fucking instrument right here that might as well be a dogwhistle:
https://youtu.be/IgVA5wqmskg?t=22