I personally use and have the family on iCloud Photo Library. Especially since most of the family is now on iOS and off macOS.

Everyone has their own personal space, and then there's the shared albums with comments/likes we make use of. If one uses Family Sharing in iCloud, it also automatically creates a shared family album connected to everyone on the account.

It's also possible to share out albums publicly and viewable on a web page, but it's not anything I or the family really makes use of anymore.