I just wanted to share a youtube user account of someone with you:
https://www.youtube.com/user/XxImmortalmagexXThis guy collects gorgeous emotional tracks from a lot of different anime and videogames.
Just go to his playlist on the top and go to his ''Top emotional OSTS of all time'' playlists
Those pieces there.. some are just too beautiful for words.. They might also be useful for people looking for beautiful instrumental tracks.. I've been a huge fan of what he collects there for the longest time so definitely check it out!