A lot of people advise to invest in the etherium and wait for the end of the year. It's not clear why the end of the year, but well.
I would divide 500 dollars into 5 parts and would choose the following:
1 part in a confidential coin: Zclassic or Horizen
2 part in a project with a capitalization of more than 1 billion: Dash or Nem
3 part in a project based on Dag technology: Iota or Byteball
4 and 5 part in infrastructure projects with a small capitalization: Stratis, Waves, Icon, Aion, Wanchain, Lisk, Qtum, Zilliqa, etc.
I fully agree with this strategy! I also think that for investors the most important thing is the diversification of risks. The Ethereum is, of course, a good and promising coin, but one must also take into account the situation that is now formed in the market in which the Ethereum falls faster than bitcoin.