BTC
ETH
WAN
MAN
ZRX
Other than that, just flip shit in szn and use Bitmex.
Edit: some other exchange/dex coins too, all of these are better than amost anything else given it's a good ex/dex and token has value
What I don't understand is what criteria you use to arrive at this list, I know for sure any wise investor would add BTC and Ethereum to their portfolio. I don't know why you picked Wanchain and no NEO, Matrix is doing very fine for investors but don't know if it is going to take the leap like NEO did.
Critieria is that they are relatively "safe" (apart from MAN, the moonshot of these 5), while still having some (possibly a lot) room to run. I pick Wanchain over NEO for that reason. I view the NEO train as missed. Ofc you can maybe make a 5x or something on it from here, but WAN can run more if alt market turns bull.
I'm not advocating having only 5 coins in your portfolio, but i do think it's wise to limit your long-term holds to something around that number and that these 5 would probably give you more gains than having only top 10 marketcap coins for that.