Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Crevado - Crevado makes it super-easy to create your online & mobile portfolio website.
ClassicPress - The WordPress fork. No Gutenberg. Great future!
Cargo - Cargo Collective is a web publishing platform that creates and offers accessible tools online.
TYPO3 - TYPO3.com - Infos, SLAs, Extended Support Versions and more
ICON6 - Icon6 is a tool to easily create a professional online portfolio website.