If you already have some Xbox controllers or similar then that is a decent route to go down if you're happy with where to download slightly dubious stuff and sideloading it.
But buying a switch is a lot easier, they're pretty cheap secondhand and you can play Mario Kart.
I think that’s what I’m after a fire stick/hdmi input/ 2 controllers/ all the games.
To tide me over until I eventually give in and buy a switch.