Here is the list of Top 5 best Altcoins under $0.5 to Invest in 2018. The price of these coins will rise in next couple of years and maybe some them can even touch the mighty Bitcoin.
1. BitShares (BTS)
2. StreamrDATAcoin (DATA)
3. Siacoin (SC)
4. Tether (USDT)
5. Stellar (XLM)