Nobara is Fedora based afaik. I guess you didn’t like the Desktop Environment (the look and feel, user interface), not the OS in it’s functionality, since all of the distro based work basically the same under the hood.
So: I suggest you to try different DEs, not different OSs. You could try Gnome, KDE, XFCE, i3, there are a lot.
If you still want to stick with distro hopping, then i suggest you these good-looking distros, Ubuntu based:
ZorinOS: looks and feels very similar to windowz
DeepinOS: Very good looking DE
ElementaryOS: kinda looks like MacOS, lacks some software from its store tho
Bonus - Linux Mint Debian Edition (LMDE)
You can’t go wrong with Debian