When comparing Korora vs RebornOS, the Slant community recommends RebornOS for most people. In the question“What are the best Linux distributions for KDE Plasma 5?” RebornOS is ranked 21st while Korora is ranked 32nd.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Easy to install
Korora has its own installer, which beginners can handle too.

Pro More user-friendly than Fedora
Korora has some useful third-party software pre-installed and is configured for immediate use.
Pro Antergos with more desktops
Pro Highly and Easily Configurable
You can easily choose from a list of browsers, desktops, office suites, etc, all from the installer.
Pro Good Repo
Reborn's dedicated repo has some extra packages that are difficult to find elsewhere, in addition to the official Arch repos, community repos, and the AUR.
Cons
Con No longer developed
Developers are having a "break" which started on May 2 2018. The latest release is version 26.
Con Crashes
Crashes every time when trying to install.
Doesn't even install it in virtualbox or VMWare.
AVOID.
