I self-host an instance of Lychee for all my family photos: https://lycheeorg.dev/

There are things I really like, e.g. that you can restrict access per user.

But there's no comment/chat/discussion facility, so you cannot easily get feedback on your photos.

There's also NextCloud, but I think the solutions there are a bit more rudimentary. However, if you already use NextCloud (or a similar solution like a CMS for example), you could look for a plugin. https://nextcloud.com/