Hi,
This might be more than you need, but it is free and relatively straightforward to use. It is my default photo viewer/organiser even though I have another programme I bought.
https://www.faststone.org/FSViewerDetail.htm
It allows you to load and review images, and VERY usefully to select (they call it tagging), you can then select all tagged photos and say move to a new folder.
Give it a go, any questions please ask.
Regards
Alchad