I think now is a good time to invest in the cryptocurrency market. Currently the price of Bitcoin and all altcoins is still very cheap, you should buy and hold long term. Some altcoins you can buy are Monero, Stella, Tron, EOS, and especially Ethereum. These are valuable and potential altcoins. I believe in the near future they will bring you a lot of profits.
your choice is very smart because at this time many cryptocurrecny prices are falling cheap and it can be a very good moment to buy and invest a lot of cryptocurrency because the cryptocurrency price will definitely bounce and rise again, so do not let this golden opportunity you miss out.
I know he chooses smart coin for investing but always have risk by investing with bitcoin and altcoin, how is use half his money for investing in real estate or using for offline investment like gold and half again for investing with altcoin, I think he have safe their money for the future when altcoin investing not giving profit he have chance with real estate investment get much profit.