The HP PrintOS Media Locator is a terrific resource for this type of question:
www.printos.com
You can filter the search results by printer, application, media manufacturer, and more. Most banner medias will run well, but papers can be a bit more of a challenge on a 300 Series, so checking for certified medias on the Locator is key. You can also pull down the media preset OMS from the link and push to the printer via the Embedded Web Server, or go directly to the printer front panel > Substrate Library > download. It will automatically synchronize with your Certified RIP after being installed and loaded onto the printer.