It seems that a Timelinize and Photostructure combo would greatly benefit those trying to escape Google Photos claws. Where can I sign-up for the Beta?
Timelinize is still in alpha (under heavy development) so you can follow on Twitter: https://twitter.com/timelinize -- I'm still working on a landing page, been too busy with the actual app. If you want to try the development previews in alpha, though, just let me know how to contact you and I'll send you an invite.
In Timelinize, I'm focusing on importing Takeout archives first (though I'll reinstate API downloads later) because of this exact problem. Timelinize has a vastly improved schema and can handle data from any data source, not just Google Photos. For example it also imports iPhone backups.
I think PhotoStructure is a great project and I've taken some inspiration from it