[wrxtasy]

So, I need a cheap Android Box with good WiFi that can run the official Dazn app. Do you have any recommendations? Or, can you give a hint on what I have to look for?
Thanks!

The very first thing to work out is the Danz App a tablet/touchscreen Android App that needs a wireless (USB dongle) Air Mouse/Tablet remote control or is it a Android TV App that you can use with a simple wireless remote like the nice Xiaomi Mi Box remote ?

Cheap Android boxes usually have pathetic, highly directional, range limited, Infra Red remotes that do not work well at all with tablet/touchscreen Apps. You need a Wireless Air Mouse remote for complete touchscreen Apps control.
Even then such touchscreen Apps control is difficult on a TV screen and is the exact reason why Android TV and simple D-Pad remote control interactions (Up, Down, Left, Right, OK, Home and Back buttons) came about.

Good WiFi these days = Dual band 2.4GHz / 5GHz - AC WiFi. Definitely 5GHz because there is simply too much RF interference in the 2.4GHz only band.

These are really not Kodi forum questions and you more likely to find answers on Android support forums such as Reddit or Freaktab regarding the Danz App.