I would recommend mnx coin and pillar token, as pe review I had on blockfolio the chart showed both of them had a history of outstanding price increase peak. This is the best time to buy and hold while their price dumped at very cheal value.
I see the potential rise of these crypto will commence one and also they'll have to reach their historical increase someday.
I wouldn't have those coins within my portfolio because they are too new. I would invest with Ethereum and Litecoin for now during the unstable price of Bitcoin.
The fact that lately Bitcoin has gone up, and all the altcoin left behind, I am very worried. And so I do not want to take risks and choose the first place Ethereum and Tron, because I am sure of it.