I am looking for a file manager that has as many of these features listed below as possible.  I cannot believe I have been suffering with windows explorer since upgrading to windows 10.   I have listed what I am looking for in order of importance. 

Hoping someone can help me narrow things down as there are so many file managers/ comparison tools.

1) Retains/preserves date created when copying files from one folder to another (important)
2) Allows you to compare files and find duplicates using criteria beyond the file name and file size
3) Can search contents of files (open office, MS Word, text files) when searching
4) Can index and include external hard drives and directories not currently connected to the system.
5) integrated viewer that allowed you to compare the content of files (like scooter software’s  beyond compare)
6) Ability to synchronize files across network
7) Provides the ability to add tags (automatically would be great)
8) Provides a way to make a note on a file ( specifically on audio/video) files
9) has portable version

While I like free and open source, I am not married to "free" 

Looking at Directory Opus, Total Commander, XYplorer, xplorer2, Altap Salamander, Free Commander, Beyond Compare

I was recording a video to MP4 using OBS and the system shut down unexpectedly.  I have a 40omb file that will not play.  I tried to use VLC to convert it, but it will not work. Does anyone know of any tricks?
https://www.makeuseof.com/tag/fix-corrupt-videos/
 Have not tried Video Repair from Grau GmbH for Windows yet.  Seems like there might be better options.

Any recommendations?

I am in need of a standalone/portable app that I can run on a system that will keep system from going to sleep and applications from timing out.

I am curious if anyone has any experience with an application they would recommend
A list of contenders