HP printer drivers compatible with MacOS Mojave version 10.14.6

Have you tried HP themselves. The last set of HP Printer Drivers you can download from the

Apple Support Downloads page is v5.1 and was released two years ago, one year before

Mojave was released. You can download it and then install it.

https://support.apple.com/kb/DL1888?viewlocale=en_US&locale=en_US

What HP printer are you trying to find drivers for.

Check your printer model against the HP printers supported by Apple's AirPrint. If your printer is on this list, and networked, you can configure it to use AirPrint, instead of any HP software. When you remove your printer from the Printers & Scanner's panel, and it is detected by Apple's bonjour service, then see if AirPrint is among the Use: selections instead of HP drivers.

If not the first paragraph, them use this browser search string, substituting your printer model string *XXX", and then only access sites that have the hp.com domain:

HP XXX printer drivers

Once you are the HP page that shows an image of your printer model, then change the macOS version string to that of 10.14 if it does not automatically detect the operating system you are on.

Drivers and software released prior to Fall 2018 may not be compatible with Mojave. You probably want HP Easy Start.