There's a LOT of them on Amazon, search for Android Auto screen or something like that. One that caught my eye cause it's the first one with an ultrawide screen is the Road Top. There's a lot of them on AliExpress or in their own store roadtop.com for a bit cheaper. Bear in mind that at least that one doesn't seem to have any sort of auto brightness and it's not clear how or even if it changes day/night mode automatically.