Let me preface my answer by saying that you don't want to be a part of the hottest MLM on the market unless you actually own a portion of the company. Most of the 'hottest' MLMs later implode anyway. What you really want is stability and long term viability.
That being said, I think the answer to your question is stemtechbiz.com/ STEMTech. I'm not sure there's anything hotter than stem cells in the world right now, and they sell stem cell enhancers.
I don't know about "hottest" but this is a consistently top performer: YOURPOWER.WS The company has been around a long time, it is easy to promote, inexpensive to get in to, and you get paid on others' efforts. That is pretty hot for me. Www.YOURPOWER.WS.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.