I don't even know if you want to go there, but... yes, there are certainly files indicating that babies were being sold and/or used for sexual pleasure.

Email regarding party with "a dozen 1-year olds": https://www.justice.gov/epstein/files/DataSet%2010/EFTA01756604.pdf

Email regarding how to make babies "suck better": https://www.justice.gov/epstein/files/DataSet%2011/EFTA02221499.pdf

Email regarding babies for "black market use": https://www.justice.gov/epstein/files/DataSet%209/EFTA00165118.pdf

Some of the worst files are compiled in this thread:

https://www.reddit.com/r/Epstein/comments/1r6ld4k/the_darkest_files_compilation_of_the_worst/