In order to manage Blog Tag Cloud  in Magento 2 Blog, please go to the Admin Panel > Stores  > Configuration  > Magefan Extensions  > Blog > Sidebar and find Tag Cloud Widget section.

Tag Cloud Widget

1. Enable or Disable the widget.

2. Set the Sort Order to manage the position of the widget on the StorefrontThe higher the number of the position, the lower it will be displayed on the Sidebar.

3. Specify the Number of Tags you want to be displayed in the Tags Cloud.

Once you've finished don't forget to Save Config and Flush Magento Cache.

Magento 2 blog tag cloud configuration

 4. Check the blog Tag Cloud out on the storefront.

Magento 2 blog tag cloud

Animated Tag Cloud Widget

In the animated version of the Tag Cloud, you Enable 3D Animation and see new appeared options.

1. Set the Color you want the tags to be displayed in.

2. Specify the Cloud  Height. It determines the hight of your tag cloud animation block.

Once you've finished don't forget to Save Config and Flush Magento Cache.

Magento 2 blog tag cloud animation configuration

 4. Check the Animated Tag Cloud out on the storefront.

Magento 2 blog tag cloud animation