In the last AMA on Reddit he did provide information about the people to whom he listens. I am posting the link to the AMA again here: https://www.reddit.com/r/Coronavirus/comments/fksnbf/im_bill...
Dr. Trevor Mundel[0], who leads the Gates Foundation’s global health work, and Dr. Niranjan Bose[1], Bill Gates' chief scientific adviser.
[0] https://www.gatesfoundation.org/Who-We-Are/General-Informati...