which kind of bones system should I create ?

Hi I would like to know what type of bones system should I choose to export my actions to another sofware?

I am really like to animate in blender , I always use “blendrig” for biped and for props or a another tipes of 3D model I prefer manual.
what’s system of bones do you recommend me to export my 3D models to an externar engine? such as unity or unreal engine?.