Keep it to 50-60% BTC
divide the rest :
safe bets : 20% dividin between - eth, neo, btm , 0x and many other projects in the top 50-75 on cmc can bring you profits , you just need to find the right moment to buy your coins , this market dip seems suitable .
polo picks : 10% divided in DRGN , BPT , BLOCK
low caps : 10% BIS ,SWT ,DBIX and so on .
PS: i don't own lots of the coins i mention in this post , you can pick yours based on your research , the key is diversification . good luck