Sending notifications to review documents

Hi

We're setting up a pretty basic Sharepoint document library but the one function that I do need is to be able to have documents with a "Review Due Date" and have a notification sent to the owner of each document 30 days beforehand, 20 days, 10 days and then to show as an overdue task in red if the date doesn't change.

We're using the Communications site as opposed to Team site as these documents will be the current versions available to staff.

I've looked at flows but can't see one that will suit.  I'm used to using Sharepoint with a Document Controller tab with built in approval workflows etc but this is way more basic than that.

Thanks in advance