In reality these days you should look for scams, that's what will make you money. If nobody will spend BTC to pump you won't make any money.
However, with that said, steer away from x11 coins as those are being secretly mined with special hardware/software at extremely low cost and only meant to be dumped at any price.
Legitimate coins there is a few and they are long term investments not a one or two day pump and dump.
Some good pumps and dumps may last two to three weeks.
I really want to give you examples, but I can not. Just play it safe and do not bet your life savings on any coin. Not even Bitcoin.
follow me on twitter and I will shoot you a coin every other day for short term investment that can make you money. I stress
short term, or you will end up being a bag holder.
https://twitter.com/JStuhlman