There are two ways to share your favorite pix, well three plus ways.
- #3 Sharing directly in Messages makes the receiver do cleanup
- #2 Shared Album by invitation is good for commenting and posting by others too
- #1 Temporary iCloud link that is viewable for 30 days without comment or you posting
Does your audience have a preference?
Actually, all of these strategies ( and more social media services ) can be applied anytime depending on the event and how important it is to “build community” among subscribers.
#3 Messages is clumsy to select and delete images. But some control in Settings > Messages > Keep Messages > 30 Days/ 1 Year/ Forever. Yikes! Do your audience a storage-space favor by Settings > Messages > Low Quality Image Mode.