you try to go to (coinmarketcap), in my opinion the coins there are really real. before you start investing you should first understand the coin, get it at a low price, and sell if you already feel the profit. You can also invest in ICOs, but lately many ICOs are scams, so be cautious about investing in ICOs. I suggest investing in the IEO project, because it is more trusted and people have now switched to investing in the IEO project, maybe IEO is now a trend.
And also do you think guys that those coin/bitcoin doubler are true?
Never invest money based on a coin multiplier, it really is a Ponzi scheme. maybe if you register early, he still pays. but vice versa.
Not even if you register later. So maybe save them on bitcoin. At least some amount