What CMS is better?

Check out https://bolt.cm It truly is "Easy for editors, and a developer's dream CMS".

I did my first and for now only website with bolt and am very happy with it. Took about 30 hours to build, starting with zero knowledge of html/php.

Edit: 30 hours for: - managing (crud) news, dates, galeries, members (group, functions) - 5 static sites - basic internal section (one static site) - view-layout of the above

What are the features you are looking for? Pretty much any CMS will do the job, they're all the same. Wordpress has the largest community around it and; plugins, themes, support and so on. I just switched from Wordpress to a static site CMS called Hugo which doesn't require PHP or anything, it's completely static.

Pagekit (https://pagekit.com/) seems to be pretty light, but it really depends on your needs and requirements.