For me I still prefer bitcoin since it is more profitable but if you want other alternatives, I think next to bitcoin is Etherium or bitcoin cash. They also have future since many investor are also interested on it.
That's a good choice bro. Me too, my first choice is btc because it has bigger value and has the potential to regain back the highest market price it reached last time. Second choice is ethereum since we can make good profits from it also. Both of them are good for investments but btc is more preferrable.