I can’t vouch for dedicated photo album companies and how their services work but if these are ancestral photos then it would good to have some context about each person: dates, places, documents and important events in their lives, as well as other resources to look at.
Are you a member of Ancestry? You can develop a family tree there and add galleries of photos linking each picture to the profiles of everyone in it.
You can then invite multiple guests to view the tree. They just sign in as guest members at no cost.
The upside of this method is that, if you make the tree public, others will also see your photos. You may find other people contact you with stories and more pictures to expand your family’s story.