I use Binance and coinbase (coinbase just to be able to get cash in and out of crytos) I do like Tron too. I have a small amount about 1600 coins. Have a bunch of different currencies is the best way to go I think. I have been trying to get more ripples and Iota each time the price goes down.

I have not seen Dentacoin yet but thats the great thing about this you always are learning more :) Good luck to us all this next year!