By default, you can only set the order categories (and tags) alphabetically. And there is a plugin category_order offers to sort them by the number of articles.
This plugin offers to sort them by a given list
CATEGORIES_CUSTOM_ORDER: the list of categories
CATEGORIES_CUSTOM_ORDER = [
'Get Start',
'Tutorials',
'API Reference'
]- ``CATEGORIES_DEFAULT_ORDER`:(optional, default=100) the default value of those not in the list. They will order alphabetically.