Shorting is a dangerous game - but we have many threads about the best alts for investment - so for a change which is the best for shorting?
Personally I feel like we are in a long slow slide down phase, too much money has been sucked out of the system and no new inflows visible (maybe a next EURo crisis could be a crypto boost - but it is hard to tell) - so in general I predict a slow slide down as people get disinterested.
So here are some types:
LTC - its resurrection out of the purgatory was based on speculations on segwit introduction and lightning - but so far lightning is rather disappointing, there is really no reason for LTC to be in the top market caps.
ETH - the ICO hype is clearly going down and it was probably the number one reason for ETH pump, without it ETH should retrace
IOTA - many technical problems