Color label printer
is there any air print enabled color label printers available ?
iPad, iOS 12
Amazon is probably your best bet to search.
They can lead you to color printers capable of printing labels then you can look to see if they are air print enabled
That said, honestly, AirPrint is basic at best, so what you really need to look for is a color label printer that also has an app or is compatible with a third party app that can allow you to print the labels you need.