Welcome to the forum from Pennsylvania and congrats on your new (to you) Wing. As far as Honda is concerned, oil is oil, as long as it meets the standards set forth in your manual. THAT SAID..... everyone has their preferrences. Some use just plain old dino oil, some synthetic blend and some full synthetic. The Goldwing engines run fine with any of the above for many miles without any problem...
I personally use the Honda synthetic blend and honda filters. Change both together (with a new crush washer...LOL).. Use what you like, change according to the maint schedule and your Wing will be happy....