bluetooth stylus

hey there, i have an iPad air 2 that i’ve had since 2015, and i am looking for a stylus to use with it. i am aware that apple pens are not an option, but with others i am not sure weather they would be compatible or not. the reason i am not getting a newer iPad is because mine still works perfectly well and i don’t see a need of getting a new one.

so please, if you know some stylus that will work with the iPad Air 2, i am really keen on knowing:)

have a nice day!