I have several long-running albums for different people to which I just add photos that might interest them. That way it takes very little effort on my part and they have all photos that I sent them neatly collected in one album.
Photos for iOS. In photos view, Select, check desired photos then tap share (box with arrow) and “copy iCloud link”. You can then paste that link into email, messenger or any other method you choose to communicate with family.
After a family trip or outing with your friends, there are lots of photos on everyone's phone. How do you share them with each other? Which android/ios app do you prefer?