EPM is probably the best publicly available single number advanced stat out right now. https://dunksandthrees.com/epm. Keep in mind it’s early in the season so small sample size and there’s gonna be large variance.
Top 15:
Jokic
Embiid
Shai
Steph
Lebron
Scottie
Haliburton
Mitchell
Holmgren
Fox
Maxey
Tatum
Durant
Doncic
Booker
Interesting to look at Offensive EPM as well. Has the top offensive players as:
Jokic
Hali
Luka / Steph (tie)
Embiid
Booker
Fox
SGA
DMitch
Lebron/KD
Seems to be pretty damn accurate for the season so far tbh.