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.
I think initial coin offering reviewing site will do that but I am not having experience of searching the details,but if you know any project precisely then you can try there website are there announcement thread to know what they are doing and check the prices in the recent date and the coinmarketcap to know how much they are performing in the real world.