A simple addition to https://www.printables.com/model/1289864-creality-space-pi-spool-holder which can help prevent the spools from spinning too easily and unwinding / tangling.  Fits into the hexagon cells in the stand.

Print in TPU with Arachne walls.  Everything else should be fine as defaults.

You can print one for each side, two for one side, or just a single one depending on how much drag you want.

Includes the FreeCAD model if you want to modify it even further.