I am having the exact same issue with the same truck: 2013 Ram 1500 4wd Sport 5.7. It started stalling randomly, then it would fire right back up, and I'd be on my way. The other day it cut out and wouldn't fire back up; it just cranked, so I had it towed back to the house.
I haven't had a chance to look at it until today and of course, it fired up and idled fine for a while in the driveway and then finally died. It threw codes for every ignition coil insufficient ionization p2302 p2305, p2308, p2311, p2314, p2317, p2320, p2323 so I reset the codes, unhooked the battery for a while then hooked it back up and it started just fine so I scanned it while it was running and it was throwing the same codes while running before it finally died again.
I have the service manual and wiring diagrams printed out, just curious where to start and if Highboost got it figured out. I haven't replaced anything yet but my first thought was same as highboost, just replace the PCM since it's one of the two things that all 8 coils have in common.
Any help will be much appreciated, thanks!