What stylii will work with a 1st gen iPad mini?

I have a 1st gen iPad mini A1454 running iOS 9.3.6 and I would like to know what my options are when choosing a stylus. I know that Apple Pencil and compatible products will definitely not work, but that leaves both Bluetooth styluses and universal ones as options. Bluetooth styluses should work with select apps that support them (I have Brushes Redux installed). However, in an answer to a [similar question](https://discussions.apple.com/thread/250921893) someone writes that there's also apparently a minimum Bluetooth version required to support those, which an older iPad may not have the hardware for. However, I am struggling to find any information about this and in general, searching for answers on this topic has been really exhausting. Does my iPad support Bluetooth stylii and what stylus would you recommend?