What engine (CMS) can be used for the website of the training center?

Question

CMS

Recommend any management system for the site of the training center.
I looked closely at Bitrix, but the functionality of combining users into groups (with the ability to change the properties of these groups) is important, which Bitrix does not have.

Answer 1

You can choose Joomla (if easier) or Drupal (if more powerful).

Answer 2

Dle - it's paid, but it's worth it; I myself keep 5 school sites on it

Answer 3

What do you understand by groups? There are user groups in Bitrix, there is a social network, with some other bells and whistles from above.