I’ve used Dropbox for several years for sharing files and such and found it also works great for photos. Pictures and videos from my devices (almost all from the iPhone, an excellent camera) are automatically uploaded to the Camera Uploads folder. Every couple of months I drag them over to a folder for the year, which I store inside a master Photos folder.

Only the current and maybe one more yearly folders are synced to my laptops, saves a ton of space. (Investigate selective sync on Dropbox)

I do have a gigantic hard drive on my desktop at home that has everything so I have one local copy of everything.

I also use Arq to periodically upload an encrypted version of the Photos folder from this desktop up to One Drive, since I get 1 TB free with my Office 365 subscription. Just for an emergency backup.

Hope this helps.