Here are the important Cura settings that I found after lengthy experimenting with mini printing. These are what I found were necessary to ensure printing minis in PLA goes well. These are chosen to maximize print quality and success on my Ender-5. This should be appropriate for any of the Ender printers. You'll definitely want to do a little experimentation for yourself to see what settings work for your setup and material, but this is a good place to start.