Uploading photos on my web for quality rating / cpmments

I am looking for easy wasy uploading photos from recent photoshoot and to have clients to pick the ones they want. Would like to create hidden photo library with unique web page and have them scroll the pictures and with simple click annotate the ones they like so I can see which ones to work on in postproduction.

Something like Portal on Wetransfer.

Any tips or examples of existing one much appreciated.