Love it too! One that has been my top listen count for years is The Witcher 3 OST. The use of some slav traditional instruments was nothing I’ve ever heard like before, and it resonated a lot with the story. Special mention to:

• The Wolf and The Swallow for giving me the chills everytime I listen to it
• Hail To Caranthir also has something special to it. Although both tracks are not part of the released albums :/