How to auto arrange the whiteboard items?

@markleo - I would start by selecting the central/root node and use the align child nodes action:

More in this in the Mind Map help center article:

https://help.miro.com/hc/en-us/articles/360017730753-Mind-map

There is an auto-layout tool, however, there may not be a powerful enough algorithm to fix that board.

@Zik Team - The above screenshot is from June 14, 2022, and things have changed a bit since.

Here is the latest on aligning nodes from the Mind Map help center article:

Moving, resizing, adding, deleting nodes

As you rearrange nodes in your mind map, all child nodes will automatically align. This is because auto layout is turned on by default.To turn auto layout on or off, click the parent node, and in the context menu toggle auto layout.

Using auto layout to align changes to nodes

When auto layout is turned off, you can still align all your child nodes. After you’ve finished organizing your mind map, click the parent node, then click the three dots (...) in the context menu and select Layout nodes.