Personally, I'm a huge fan of Hollow Knight, Ori and the (Blind Forest/Will of the Wisps), and Kingdom Hearts. Orchestral soundtracks are just something else...
Hellblade: Senua's Sacrifice is surprisingly good. Surtur's theme is one of the best boss themes ive ever heard. I also really like using the Battle Brothers ost for my Pathfinder games.
The song in the final fight was SO fitting. And even more so the song during the credits. When they rolled I thought "wtf, that kind of music doesn't fit AT ALL", but then the lyrics started. And they fit so damn well they almost bring me to tears.