If you already have a gaming pc you could get a phone controller grip and use the steam link app.
I’m using a bracket for my xbox controller that way I keep the same comfort. Most phones have oled screens and a high ppi so it can look pretty nice.
It opens steam in big picture mode all ready, and since it’s on a pc you can run the games at max quality.
Yea was thinking the same thing. “How many of those are scalpers?”