Oh man, there's so many. Hollow Knight is one of my favorites. Hornet and City of Tears are standout hits.

Everything from Touhou is a banger, Reach for the moon, Immortal Smoke is probably my favorite. Cemetery of Onbashira and Fires of Hokkai are incredibly underrated.

Every song from Octopath Traveler is good, but Decisive Battle stands out as my favorite.

I've never actually played Sonic Colors, but This song is good enough to justify the entire game.

On the topic of games I've never played, the Torna Battle Theme from Xenoblade is amazing.

All time GOAT though is Stickerbrush Symphony from Donkey Kong Country II. No other soundtrack is close to me.