i would like to know if there are rules on which photos can be added to FamilySearch to help me know what photo to use
You can find the information you want here:
How do I upload memories to FamilySearch?
Hello @Steven Owens
Perhaps you want to know what the guidelines are for the content of photos which can be uploaded?
This article explains what FamilySearch will not allow as well general guidelines for what is appropriate.
Rules for uploading photos
FamilySearch provides an easy method for you to share photos of ancestors to help the family come to know and love one another. We screen all images you upload. See our Upload Guidelines and Policies for more information.
As you decide what to upload as a photo or document, keep these things in mind:
When you create or upload a story, check for any inappropriate words. Here are some kinds of words to avoid:
When a photo or document image is inappropriate, FamilySearch marks the memory item as "Restricted" and sends you an email message. If you believe this restriction is an error, reply to the email message you received, and provide an explanation. Your reply goes directly to the team that reviewed and screened your memory item.
Why does it say that my photo is restricted?
Can I add memories about my living relatives to Family Tree?
Thank you Kerrebee and Istolk36 for providing a wider range of ways to answer the initial question.
My thanks, DavidBeck1
other than what has already been mentioned - you are totally free to upload photos
any and all that you like that apply to your family tree.
and not just photos
but digital media of many kinds. even audio.