Can you suggest me which one is best Altcoin coin hold for 2018? 
Buy ethereum since it is only below $300 ,and hold for 1-2 years.
Or buy tokens such as Policypal,or trade.io tokens this has the best future for me as i am holding this from the start of the year,and now are getting better as for each recovery ..
But its all your decisions not ours,just use this as reference