I hate photobucket. It always crashes my browser and the ads are long and intolerable.
I would recommend https://flickr.com/ It also is now limited (used to be free and unlimited) but it will get the job done. Easy to make a "sale" folder. Easy to change photos from "private" to "public" or "view by friends only" if you like.
I thought Flickr had a rule that you can't advertise anything for sale on the site? Did that change?
I have Flickr Pro but haven't been active in ages. I just remember all the doll people I followed a couple of years ago labeling sale items as "for adoption" to avoid the rules.