I now have a 1080p w/PS4 and 4K w/PS4Pro in my game room. Want various games on both so both can be used to play together and online at the same time, similar to LAN but against the public.

I only have game data on PSPro so far and not sure how to get it on standard ps4 yet, or if, and have it be usable by both at the same time ? same ps+ account or do I have to have two now ? a friends account logged in maybe ? Hopefully someone picks up what i'm puttin down here. Not able to really do it yet since Comcast is coming friday and there is still a bit of stereo connections, speaker mounting, wire running and clean up for the "battle station" to do.