Hello, I am wanting to upgrade my Cr-10 and Tevo Tornado hotend/extruder/nozzle to something

Hello,

I am wanting to upgrade my Cr-10 and Tevo Tornado hotend/extruder/nozzle to something better and that can handle high temps and more abrasive materials. I have seen the E3D V6 and the Flexion but other than that I haven’t seen much. What does everyone recommend?

Thanks