Late to this but ... but as others have written, I would never use Evernote for backing up photos.
A few alternatives depending on your circumstances, to me the important things are two: if it's not automatic it's not backup and there has to be one off-site copy.
I'm not using it myself but one of the simplest solutions is probably Backblaze.
If you have storage space available somewhere, Arc or ChronoSync might be an alternative
My personal backup solution involves two external disks + two Synology NAS machines (one offsite), I have at least four copies of all photos. If you happen to have a Synology NAS then you probably have most of the tools you need there.
For those who doesn't like Adobes solutions for editing/organizing there are many alternatives depending on what you want to do. Professional level: Capture One. Entusiast: Luminar, DxO Photolab, On1, etc. If you mainly want to organize photos "manually" then I would check out Lyn. For editing the most popular seem to be the programs from Affinity and Pixelmator, depending on what you want to do Acorn might be an alternative.
If you want to have an iOS + macOS solution for editing & organizing the only real alternative currently is Lightroom (cloud or classic version) but that might change with the release of iOS 13.