I make fractals in Blender using custom OSL scripts and I was quite happy with this render. There is still a lot of noise and volume sampling artefacts but it's already a
Fractal Generator - Blender Market
GitHub - jeb495/Blender-3D-Fractals: A 3d mandelbulb fractal made procedurally in blender
Blender fractals, now in COLOR | Geometry Nodes/Shading tutorial - YouTube
4D objects in Blender! - YouTube
Fractal Machine - Blender Market
BlenderMonth : G for Graphic Fractal - BlenderNation
Blender fractal - Finished Projects - Blender Artists Community
I wish Blender had a 3D fractal generator system - Blender and CG Discussions - Blender Artists Community
Fractal Machine for Blender
modeling - How to create a Sierpinski Dodecahedron fractal - Blender Stack Exchange