Drupal is a free CMS. Websites on Drupal: White House website (WhiteHouse.gov).
CMS Drupal is available for automatic installation on a large number of hosting companies. Support for Drupal correct operation is declared by all hosting companies without exception.
Rating methodology for Drupal 9 hosts
The rating only considers those companies that have developed a specialized pricing plan for CMS Dupal. All hosting companies that only claim to support Drupal, and there are many of them, are NOT considered in this rating.
The official minimum system requirements for Drupal 9
Disk space: 100 MB for basic installation, no plugins, no backup, no database size
PHP 7.2 or higher
PHP Memory Limit must be set to a minimum memory size of 64 MB. (I recommend a minimum of 512 MB)
Web server: Apache (recommended)
Database: MySQL – 5.5.3 (MariaDB 5.5.20, Percona 5.5.8) or higher with InnoDB-compatible main storage mechanism
Additional software: Drush utility to manage and administer Drupal, Composer