Buy bitcoin, that's the safest and most secured coin you can invest right now. Make it a habit also to read and research about the coins you want to invest in, of course people would want to ask opinion on others but at the end of the day it is still you who decides which coin to invest in, right?
Exactly. Not only safest but more potential there is in giving more returns in bitcoin than any other altcoins. And besides though volatile, its been proven to be strong and leading. Though you can invest in ICOs too which will not require you to spend much of your money. If not sacammed ICOs also are good place of investments but will take months for you to get the profit.