Hi @sunnyleung,
Would you please explain a bit for the "a list of documents" here?
If only a list of the documents uploaded, without the actual documents content, then this should be possible.
Adding a blog for reference:
"Get Manager" For SharePoint Document Library Approvals
The blog above shows a way to get the Library Metadata.
In your scenario we could start with the Recurrence, then SharePoint->Get Items, Filter Array Action, Create HTML table Action, then send Email action:

Things to remind is the Filter query condition part.
We could write the condition using Workflow Definition Language.
If you need additional help on this, please post back.
Things to note:
1. Under SharePoint-> Get items action, List name field, choose to enter custom value, then specify your Library name there,
2. Condition used under Filter Array,
3. Create HTML table Action, make sure the include healders is selected to Yes (True), or in the following format:
@bool('true')
4. Send an Email action, make sure the Is HTML is selected.
Regards,
Michael