Just check top 20 cmc if you want to find new projects to buy. Rest of them are bullshit mostly
The top 20 projects are the best in this market, but to be honest it won't make you much profit like other altcoins. We should bet a bit on the altcoins outside the top 100 because if the bull run begins its price will increase many times compared to the top altcoins.
Pump and dump scheme always been happened in crypto currency. And honestly we don't even know this scheme, I'm very happy when I look there is coin who got increased price drastically but I don't like that the increase price only happened for a while, after that the price of the coin just decrease a lot even more than its original price before increase.
Maybe I just have one solution to avoid such this thing. I only choose bitcoin for my long term portfolio. I feel comfortable when I'm choosing it although the price will go down firstly. And seem like altcoin is suitable to choose as trading place, the pump and dump scheme is good for trading strategy. You just only look the demand for the coin in the market and you can follow it, so as you will know the real movement coin price and pump and dump scheme.