I like Bible Paintings, the one with all the archeological stories, anything Laz puts out, the Colorado Ping List and the military ping list.
Sunken Civ’s archaeology/Ancient History, etc. ping list is my favorite.
Laz has several ping lists.
The Daily Win
Fallout 4
The Official Lazamataz Sometimes-Funny, Sometimes-Disturbing Ping List
and my personal favorite
The Rage Monkey ping list.