It's an impossible task to narrow down the multitude of ambient recordings released every year into a definitive "Best of" list. There's so much music out there that I'll never hear it all and what I do hear is hard to give the proper attention to.
I made two mixes from the list - this first one is more straight forward ambient and the next one will have a more modern classical/electro-acoustic tone. I split it into two mixes so that I didn't end up with a 4-hour mix. Ain't nobody got time for that!
The full list is here - https://www.mixcloud.com/lowlight/posts/best-ambient-music-of-2019/ and it will be in the comments along with the tracklist for this mix.