You should look a bounty web page and see which coins are available there. Many times, solid companies may offer you some tips in the form of tokens and coins.
First of all there is no thing as such called as free lunch box and it is popular saying in the real world which applies in the crypto world as well.
So as far as I know you have to at least move your hands to gain something. If you work for bounties then you get lots of tokens and coins according to where you work that is different types of campaigns. With proper plans and strategies you can earn yourself good amount of legit tokens and then trade them later on in an exchanger.
For more info visit bounties section under the Altcoin Crypto currencies.