Multiple user accounts in Safari like in Chrome?

Solution 1:

I, too, have looked for this ability in Safari, but it just doesn't exist. I've submitted an enhancement request at Apple's Safari Feedback page every time a new version has come out.

Solution 2:

SwitchUp is no longer actively supported, unfortunately but I have a recommendation which I am using just now – 

https://developer.apple.com/safari/technology-preview/

Run a second safari :-) Technically, this would be beta software so you may run into issues, but it's the closest I can see to accomplishing this (and yes, you'd only be limited to 2 profiles with this).

Good luck!

Solution 3:

Open another tab in private browsing. It lets me log into one tab with my own Facebook, and another tab as my wife's Facebook.