If you are thinking you want monitor lot of coin in same time then it's a bad idea. You'll not get every or most of all bump signals. I will recommend work with few coins which you really care. And i think personally researching each coin is the better choice besides some third party website's help. But if you want really quick news about projects i will recommend
Twitter Platform.
Well it's not a best social platform for crypto news because of lot fake/scam news though, but if you follow the right channel (project channel) you can find latest news about crpyto projects faster than other websites news. I also strongly recommend projects blog channel. (where they published about their latest news). Could be Medium, Steemit etc.