Fung is great for help in breaking down propaganda against fasting and the dogma of CICO.
Phinney has been a pioneer in research related to ketones as fuel, but is rather skeptical about longer-term fasting. He seems fully on board with IF though.
Bikman is a delight, and great at breaking down existing research in bite size chunks.
Patrick in less familiar with, but have heard her name thrown around a lot.