You will never be able to accurately predict which coins will up or down, I would prefer coins with high volumes and also the price increase isn't too high either and because my profit target isn't too high it's only between 1-5%, so I don't think too much about pumps and dumps.
If you want to know specifically which coins will be pumped or dumped, you must join the group and of course there will be a fee to pay I'm not recommend that way because you need a big capital also a chance for you to get scammed are high.