VPN load on FireTV console

I would like to use a VPN directly on my FireTV gen 2 console. I was able to sidloed NordVPN, but was unable to log on, due to it looking like a smartphone app. Is there any good and safe VPN that can be loaded onto KODI directly from the app. At the present I only wish to mask my KODI usage. Unfortunately my router does not support a direct VPN install.