This site lets you search all the books that come up during conversation on JRE: https://jrelibrary.com/

Here are 5 pages of podcasts where a Sitchin's work is mentioned, I pulled out the ones where they likely are going into more detail about it: https://jrelibrary.com/?s=Zecharia+Sitchin

#1839 - Duncan Trussell #1510 - George Knapp and Jeremy Corbell #1029 - Tom DeLonge #961 - Graham Hancock, Randall Carlson, Michael Shermer (One of my favorites) #872 - Graham Hancock, Randall Carlson #852 - John Anthony West