Sync 8 Bases with 1 Base with 8 Sheets

Hi there,
I have 8 Bases with 1 sheet each, where I have partners that are entering Customer Data in different columns.
I want to be able to aggregate all theses Bases into 1 Bases divided into 8 Sheets, so I can have an overview on what’s happening / has been updated / created on all those individual Bases, within 1 main Base.
How can I manage it?