Frankly,
@cesar creates because his content never seizes to amaze me, and his videos contain such passion and joy for this game that is really contagious for my own inspiration to play PZ. And I really can't believe his name isn't mentioned here more frequently; his videos might be a little longer than average, so it's understandable that not everyone has the time to watch them, but quality-wise his channel is at the top of my list of favorite PZ content creators.
I mentioned him first because many of the others are frequently mentioned here, but I also really enjoy what DeLadySigner, Haribo, Hypothetically Jay,
@Iben,
@Leaf Productions, PoisonBlade, Rudi Rennkamel, SimplySavannah and
@ZSHplays are doing (listing them alphabetically because I don't want it to look like I prefer any of them over the other). Whenever I find time to play, which hasn't been that often recently, I'll catch up with some of their videos. BestInSlot also has some amazing videos for creativity builds, but uploads PZ videos only very infrequently.
I also loved PaulsLey's videos, hope he's doing well.