There are a lot of CMS competing for users. The usual suspects are WordPress.com, WordPress.org, Squarespace and Wix, but Joomla!, Typo3, Drupal and Blogger are possible alternatives as well.
Personally, I find Squarespace, Wix and Typo3 to have very attractive designs for inexperienced users to manipulate. WordPress has an amazing amount of themes and templates as well and particularly WordPress.org gives a developer a broad option of excellent designs.
Look up the themes and templates available below
Elegant Themes with flagship “Divi” for WordPress.org
Themeforest giving an overview of the themes and templates of various CMS
More Info About CMS
Digital Guide’s CMS comparison 2019
W3Tech has a graph looking at market share and usage percentage
Federico's Reader 