I haven't followed the forum much for a while, so take my opinions with a grain of salt. The best things I've heard recently:
Pat Thomas, Dominic Lash & Tony Orrell - “BleySchool”
Tyshawn Sorey & Marilyn Crispell - “The Adornment of Time”
Evan Parker - “As The Wind”
MMM Quartet - “Metz Arsenal” This one is a little older but I only heard it recently.
I think the above would be considered free.
Not sure if “Fly Or Die” by Jamie Branch is exactly free jazz but it is absolutely one of the best pieces of music I've heard for a long time.
I will be interested to see what responses you get here.