Here we can't target a single coin to make trading because Per minute the market of the every different coin , so here we can't invest our money in only a particular coin .
Here in my opinion the best coin to buy are following .
1) PSB coin at yobit for one month .
2) BCC coin for long term .
3) BCC coin of bitconnect for two months to reach 25% profit.
4) Xvg for long term .
5) UAE coin for one to two months .
6) Sia coin , for long term.
7) Digibyte coin for long term .
pak coin for short term .
If you can buy these coins in small small amount thrn i am sure thwt you will make net profit of 10% easily in the month .