How does one know which altcoins come out recently and thus are trading pretty good? You can check coinmarketcap to see which coin has increased in price or decreased in price the most in last 24 hours or 7 days or month etc. But besides that, are there sites that show what coins will be released soon to the public? Thus by that i mean being able to buy from exchange like binance etc.
if you always spend some time in your daily life about this news then it will be very easy to understand what is going on and you can easily update everything in your mind but it will not easy job to do you need to make your life full time in Crypto field then only it is possible.