1. XRP +++, I'm soooo bulllish on XRP for the years to come
2. ETH, can't go wrong with this one
3. LTC, cheaper and faster than BTC and ETH, I actually use it to transfert my money from CB to Bittrex
4. STRAT, much space to grow
5. IOTA ? Still didn't buy as I am doing my researchs, but seems promising