I've seen several times that every altcoins doubles the price in a single day which means every coin or token has its opportunity to boom. IF BTC price does down they drop but suddenly they skyrocket by the next day itself, it's pretty hard to judge which coin might pump for the next day. Is there any specific website which might help me to identify? Kindly share your thoughts.
No not altcoins have a chance, investors are wiser now and they know what to look for in a coin, this is not 2017 where developers create a coin and investors will just pump it, we are past all this, if a coin is not attached to any platform and has nothing to offer to the community that they can use then this coin is useless, some of the coins with real usage are Binance, Ethereum, Tron if you've invested in a coin that has nothing to offer then it has no chance in the market.
But what about the called meme coins? They are useless, don't offer any useful feature to adopters, investors know about it and still invest on them anyway, pumping their prices to ridiculous levels. That is an evidence any altcoin has some chances of returning decent profit to investors on short run. However I agree with the altcoins options you mentioned and I think serious investors should really stick only with solid crypto currencies.
A good way to check if an altcoin worths the investment is to check for what reason people are using it. If there is a real demanded product behind the coin I would say it's a good investment.
like dash. How is it possible that the price is so low?