I played around with this when I first purchased my Note 5.
I started of with Microsoft WiFi adapter for a true wireless setup. Unfortunately, it worked with every device that I tried, except the Note 5 (currently it is being used on my wife's TV and her phone/ tablet) . Supposedly it will work with a firmware update but I don't currently have a machine to complete the upgrade.
They have since come out with a new version but I don't know if it supports the Note 5.
My next thought was to pick up an earlier Note 2-3 or 4 with an accompanying Samsung Smart Dock. This would give an USB out, for adding an external Hard drive, an HDMI out and an audio out.
I finally went with the Fire TV with a Prime account but I have an in house WiFi network, so I took the easy route.
GRIM