if you recieved them newly nowadays bounty campaigns do not give anything. you can just hold them. 1 2 years ago there were so many good signature campaigns that distributes thousands of dollars to each participants 
you are right, now only a few signature campaigns give very large results to the participants. I still remember there were several projects that gave rewards to their campaign participants with eth, which was very surprising because it turned out that the development of the project also went well. for now I don't think there is much that can be money.