I make my own gaskets from professional gasket paper, however I prefer OEM or cometic in some cases.
95% of the time I use OEM gaskets. I give them a very thin coay of Threebond 1211
Also dont forget to grab a spray can of PERMATEX copper spray for the head gaskets. Metal head gaskets should always be sprayed with a coat or three of copper spray
DO NOT use copper silicone.
The copper spray allows for a much better seal against minor imperfections between sufaces, helps disapate/transfer heat better etc.