I have always liked the Marsee tank bags with the corona mount. I have them on my RT and GS. They do not lay on the paint and are easy to remove for fueling.
I have been very happy with mine over the years. And with another mount you can easily move the bags from bike to bike.
84 R100RS LE,14 Ducati MTSGT, 73 850 Commando, 78 CT90, 14 Ural, 74 Eldorado police, 64 R50/2, 13 TR650, 01 DRZ400E, 94 900SS/CR