are there any sites that tell you want stocks you should invest in?

Yahoo Finance will give you at least decent articles on what may be a good idea to buy. Nasdaq.com gives you some ideas. Many pay services give you their recommendations. They may be a good picker or have their own interest in mind when they recommend one. Wherever you get your info from, always look at the stocks essentials like debt, PE, number of shares and analyst expectations.

There is no one particular site that solely provides such information on daily basis but that doesn't mean it doe not exist. The best option is keep an eye out for your broker website if you have one. They should have daily signal or analysis included in the service you are buying.

There are few forums you can join but the issue trusting the signal you are getting.

I will recommend you stick wit your Forex broker if they has a real time signal. Read up this article. You will find more help than what you see here. https://topgoldiracompanies.com/regal-assets-revie...

Many but of course if they already own the stock they will tell you to buy it, and if they want to buy a stock they will tell you to sell it because they want it at a lower price.

sure; like Seeking Alpha or Motley Fool.

but don't take their word at face value; they're often wrong.

 Every major brokerage firms have on-line information about investment ideas for their clients. 

All financial reporting and business services websites also provide investment ideas.

Lots of sites.  If they had a good way of telling, they wouldn't be telling you.

Sure.  There are plenty of them.  They may or may not know what they are talking about.  

There are all kinds of sites that purport to tell you what stocks to buy, and ALL of them are nonsensical.

Shrektastically shrek